1) The document analyzes traffic accident data from Nigeria to profile clusters of high-risk and low-risk traffic roads and understand characteristics connected to injury severity and death.
2) It applies data mining techniques to model accident records and extract patterns relating driver behavior, road conditions, and weather to accident risks.
3) Key findings include differentiating accident risks by age group, period, and road type. High-risk roads were identified for targeted safety policies.
Everyday challenges will be presented to the participants of this year’s Program on Games, Decisions, Risk and Reliability (GDRR) to explore solutions. The presentation will highlight the trends, potential contributing factors, and impacts due to the lack of reliability of the nation’s transportation system. The discussion will touch on multiple transportation modes and from the perspectives of both moving people and goods. Other than capacity constraint and unanticipated events (e.g., crashes or inclement and extreme weather), the reliance of future transportation on automation and IoT would undoubtedly further impact system reliability in an unprecedented manner. An open dialogue on how GDRR can help ensure a reliable transportation system will conclude the presentation.
International Refereed Journal of Engineering and Science (IRJES)irjes
International Refereed Journal of Engineering and Science (IRJES) is a leading international journal for publication of new ideas, the state of the art research results and fundamental advances in all aspects of Engineering and Science. IRJES is a open access, peer reviewed international journal with a primary objective to provide the academic community and industry for the submission of half of original research and applications
International Journal of Humanities and Social Science Invention (IJHSSI)inventionjournals
International Journal of Humanities and Social Science Invention (IJHSSI) is an international journal intended for professionals and researchers in all fields of Humanities and Social Science. IJHSSI publishes research articles and reviews within the whole field Humanities and Social Science, new teaching methods, assessment, validation and the impact of new technologies and it will continue to provide information on the latest trends and developments in this ever-expanding subject. The publications of papers are selected through double peer reviewed to ensure originality, relevance, and readability. The articles published in our journal can be accessed online
Eurosain is devoted to saving lives through pertitent application of hazard control/elimination and risk management of existing or projects of roads/highways.The approach is compliant with the latest standards and codes, and applies to developed countries as well as underdeveloped or in development countries.
Study On Traffic Conlict At Unsignalized Intersection In Malaysia IOSR Journals
The research conducted is traffic conflict at unsignalized intersections . The purpose of this research
is to study accident data used as an identification of hazardous location leads to less accurate countermeasures.
It is because accidents are not always reported especially accident involving damage only and this situation can
reduce good comparative analysis. To overcome these lacks of accident data, many ways of employing nonaccident
data have been suggested. One of the ways using non-accident data is traffic conflicts, which is defined
as critical incidents not necessarily involving collisions. The traffic conflict technique was originally set up to
provide more reliable data and information of traffic problems at intersections which actually would replace the
unclear and incomplete recorded data accident. The conflict study was done at the selected unsignalized
intersection where types of traffic conflict can be identified and classified. Various road users involved in the
conflict at the unsignalized intersection were also observed. Then conflicts data captured were analyzed using
the computer program to observe for any conflicts at the intersections. The linear regression graph was used to
show the relationship between conflict and accident data where two different equations were derived from the
graph. This equation may be used to make a prediction for the relationship that might exist between those two
variables at another location.
The Effects of Vehicle Speeds on Accident Frequency within Settlements along ...IJMER
Literature provides overwhelming evidence that a strong relationship exist between
vehicle speed and accident risk, and an outcome severity in the event of an accident. Excessive speed
is said to be a major causal factor of road accidents on trunk roads; contributing 60% of all vehicular
accidents. However, speed rationalization measures implemented on a number of trunk roads in
Ghana have realized very little success. This study therefore investigated the effects of vehicle speeds
on accident frequency within settlements along trunk roads. Data was collected on accidents, vehicle
speeds and other road and environment-related features for ninety-nine (99) settlements delineated
from four (4) trunk roads. Correlation analysis was employed to establish useful relationships and
provided insight into the contributions of relevant road and environmental-related variables to the
occurrence of road traffic accidents. Using the Negative Binomial error structure within the
Generalized Linear Model framework, core (flow-based) models were formulated based on accident
data and exposure variables (vehicle mileage, daily pedestrian flow and travel speed). Incremental
addition of relevant explanatory variables further expanded the core models into comprehensive
models. Findings indicate the main risk factors are number of accesses, daily pedestrian flow and
total vehicle kilometers driven, as vehicle speed did not appear to influence the occurrence of road
traffic accidents within settlements along trunk roads. In settlement corridors, mitigating accident
risks should not focus only on traffic calming but rather on measures that reduce pedestrian and
vehicular conflict situations as well as improve conspicuity around junctions
Everyday challenges will be presented to the participants of this year’s Program on Games, Decisions, Risk and Reliability (GDRR) to explore solutions. The presentation will highlight the trends, potential contributing factors, and impacts due to the lack of reliability of the nation’s transportation system. The discussion will touch on multiple transportation modes and from the perspectives of both moving people and goods. Other than capacity constraint and unanticipated events (e.g., crashes or inclement and extreme weather), the reliance of future transportation on automation and IoT would undoubtedly further impact system reliability in an unprecedented manner. An open dialogue on how GDRR can help ensure a reliable transportation system will conclude the presentation.
International Refereed Journal of Engineering and Science (IRJES)irjes
International Refereed Journal of Engineering and Science (IRJES) is a leading international journal for publication of new ideas, the state of the art research results and fundamental advances in all aspects of Engineering and Science. IRJES is a open access, peer reviewed international journal with a primary objective to provide the academic community and industry for the submission of half of original research and applications
International Journal of Humanities and Social Science Invention (IJHSSI)inventionjournals
International Journal of Humanities and Social Science Invention (IJHSSI) is an international journal intended for professionals and researchers in all fields of Humanities and Social Science. IJHSSI publishes research articles and reviews within the whole field Humanities and Social Science, new teaching methods, assessment, validation and the impact of new technologies and it will continue to provide information on the latest trends and developments in this ever-expanding subject. The publications of papers are selected through double peer reviewed to ensure originality, relevance, and readability. The articles published in our journal can be accessed online
Eurosain is devoted to saving lives through pertitent application of hazard control/elimination and risk management of existing or projects of roads/highways.The approach is compliant with the latest standards and codes, and applies to developed countries as well as underdeveloped or in development countries.
Study On Traffic Conlict At Unsignalized Intersection In Malaysia IOSR Journals
The research conducted is traffic conflict at unsignalized intersections . The purpose of this research
is to study accident data used as an identification of hazardous location leads to less accurate countermeasures.
It is because accidents are not always reported especially accident involving damage only and this situation can
reduce good comparative analysis. To overcome these lacks of accident data, many ways of employing nonaccident
data have been suggested. One of the ways using non-accident data is traffic conflicts, which is defined
as critical incidents not necessarily involving collisions. The traffic conflict technique was originally set up to
provide more reliable data and information of traffic problems at intersections which actually would replace the
unclear and incomplete recorded data accident. The conflict study was done at the selected unsignalized
intersection where types of traffic conflict can be identified and classified. Various road users involved in the
conflict at the unsignalized intersection were also observed. Then conflicts data captured were analyzed using
the computer program to observe for any conflicts at the intersections. The linear regression graph was used to
show the relationship between conflict and accident data where two different equations were derived from the
graph. This equation may be used to make a prediction for the relationship that might exist between those two
variables at another location.
The Effects of Vehicle Speeds on Accident Frequency within Settlements along ...IJMER
Literature provides overwhelming evidence that a strong relationship exist between
vehicle speed and accident risk, and an outcome severity in the event of an accident. Excessive speed
is said to be a major causal factor of road accidents on trunk roads; contributing 60% of all vehicular
accidents. However, speed rationalization measures implemented on a number of trunk roads in
Ghana have realized very little success. This study therefore investigated the effects of vehicle speeds
on accident frequency within settlements along trunk roads. Data was collected on accidents, vehicle
speeds and other road and environment-related features for ninety-nine (99) settlements delineated
from four (4) trunk roads. Correlation analysis was employed to establish useful relationships and
provided insight into the contributions of relevant road and environmental-related variables to the
occurrence of road traffic accidents. Using the Negative Binomial error structure within the
Generalized Linear Model framework, core (flow-based) models were formulated based on accident
data and exposure variables (vehicle mileage, daily pedestrian flow and travel speed). Incremental
addition of relevant explanatory variables further expanded the core models into comprehensive
models. Findings indicate the main risk factors are number of accesses, daily pedestrian flow and
total vehicle kilometers driven, as vehicle speed did not appear to influence the occurrence of road
traffic accidents within settlements along trunk roads. In settlement corridors, mitigating accident
risks should not focus only on traffic calming but rather on measures that reduce pedestrian and
vehicular conflict situations as well as improve conspicuity around junctions
International Refereed Journal of Engineering and Science (IRJES)irjes
International Refereed Journal of Engineering and Science (IRJES) is a leading international journal for publication of new ideas, the state of the art research results and fundamental advances in all aspects of Engineering and Science. IRJES is a open access, peer reviewed international journal with a primary objective to provide the academic community and industry for the submission of half of original research and applications
In spite of the many advancementsinsafety technology, roadway design and engineering as well as
several policy initiativesaimed at addressingtraffic crashes (and it concomitant injuries and fatalities); it
continuesto saddle humanity and present significant health hazards and threats to the socio-economic wellbeing
of the inhabitants of this earth. Even though federal and state transportation engineers, policy makers, planners
and researchers have spent large sums of money and effort on this complex and ubiquitous problem, traffic
crashes is one of the top causes of fatal and non-fatal injuries in the United States. In this work a piecewise
approach was used to perform an exploratory,systemic characterization and analysis of the six-year (2008-
2013) traffic crash data from North Dakota to discover the nature, peculiarities and trends in the data.Several
important features and trends in the data were discovered and the outcome of this paper can be further used for
engineering design, planning and policy analysis. The research approach could be duplicated in any other state
to enhance its societal benefits. Heterogeneity and uncertainty will be fully addressed in future work.
In spite of the many advancementsinsafety technology, roadway design and engineering as well as
several policy initiativesaimed at addressingtraffic crashes (and it concomitant injuries and fatalities); it
continuesto saddle humanity and present significant health hazards and threats to the socio-economic wellbeing
of the inhabitants of this earth. Even though federal and state transportation engineers, policy makers, planners
and researchers have spent large sums of money and effort on this complex and ubiquitous problem, traffic
crashes is one of the top causes of fatal and non-fatal injuries in the United States. In this work a piecewise
approach was used to perform an exploratory,systemic characterization and analysis of the six-year (2008-
2013) traffic crash data from North Dakota to discover the nature, peculiarities and trends in the data.Several
important features and trends in the data were discovered and the outcome of this paper can be further used for
engineering design, planning and policy analysis. The research approach could be duplicated in any other state
to enhance its societal benefits. Heterogeneity and uncertainty will be fully addressed in future work.
Pedestrian Conflict Risk Model at Unsignalized Locations on a Community Streetcoreconferences
Crossing a street at unsignalized location can be dangerous to pedestrians, especially the elderly. This paper evaluate the pedestrianvehicle collision risk on specific roads to identify that the degree of Pedestrian safety requires pedestrian intervention such as road improvement. First, age was a significant variable in that older people tend to be at greater risk than the non-elder people. There was an insignificant difference between the PSM of approaching vehicles that were traveling at speeds less than 30 km/h and those traveling at speeds in the range of 30-50 km/h. Interestingly, conflicts when the speed of the vehicles exceeded 50 km/h, the risk of conflict risk was higher than it was for vehicles traveling at speeds below 30km/h. The ratio of conflict risk for crossing gradient topography road was about 21.7 times greater than that for the non-gradient topography area. Regarding safety facilities, the 30 km/h speed limit sign influenced the risk situation of conflict. The ratio of conflict risk for a road with the safety facility was about 0.395 times lower than that for an unmarked road.
Road Safety is a Prime Rule of Traffic System: A Case Study of Kolkataijtsrd
The main aim of this paper is to analyze the road accident in Kolkata. Analyze shows that the distribution of road accidental deaths and injuries in Kolkata varies according to age,gender,month and time.Age group 18-59 years is the most vulnerable population group.Though males phase higher level of fatalities and injuries than their female counterparts.Moreover road accidents are relatively higher in winter and during working hours.The main causes of accidents are poor condition of road,reckless driving,poor condition of vehicle and lack of awarness among people. Sumana Das"Road Safety is a Prime Rule of Traffic System: A Case Study of Kolkata" Published in International Journal of Trend in Scientific Research and Development (ijtsrd), ISSN: 2456-6470, Volume-2 | Issue-4 , June 2018, URL: http://www.ijtsrd.com/papers/ijtsrd14571.pdf http://www.ijtsrd.com/humanities-and-the-arts/geography/14571/road-safety-is-a-prime-rule-of-traffic-system-a-case-study-of-kolkata/sumana-das
IJRET : International Journal of Research in Engineering and Technology is an international peer reviewed, online journal published by eSAT Publishing House for the enhancement of research in various disciplines of Engineering and Technology. The aim and scope of the journal is to provide an academic medium and an important reference for the advancement and dissemination of research results that support high-level learning, teaching and research in the fields of Engineering and Technology. We bring together Scientists, Academician, Field Engineers, Scholars and Students of related fields of Engineering and Technology
CHARACTERIZING HAZARDOUS ROAD LOCATIONS AND BLACK SPOTS ON ROUTE N8 (DHAKA-BA...Fayaz Uddin
Road traffic accidents and corresponding causality are the most concerning issues in the transportation sector of a developing
country like Bangladesh where road crashes are remarkably high. According to police reported road traffic accident database,
every year about 2800 or more accidents occur in Bangladesh. This research analyzes the various accident data from year 2007
to 2012 using Microcomputer Accident Analysis Package (MAAP5) software in route N8 (Dhaka – Mawa – Barisal – Patuakhali
National Highway) in Bangladesh. This research reveals accident prone locations which are commonly termed as black spot and
Hazardous Road location (HRL) on the route N8 followed by establishing maps by Geographic Information System (GIS). Headon,
rear-end, overturning, side-swipe and hit-pedestrian are the most dominant types of accidents. Analysis shows that maximum
number of accidents occurred in fair weather in route N8. The result clearly indicates that buses contribute mostly in the
accidents.
IJRET : International Journal of Research in Engineering and Technology is an international peer reviewed, online journal published by eSAT Publishing House for the enhancement of research in various disciplines of Engineering and Technology. The aim and scope of the journal is to provide an academic medium and an important reference for the advancement and dissemination of research results that support high-level learning, teaching and research in the fields of Engineering and Technology. We bring together Scientists, Academician, Field Engineers, Scholars and Students of related fields of Engineering and Technology
The Alliance for Toll-Free Interstates (ATFI) was formed to educate the public about the
negative impact that tolling existing interstates has on our communities and businesses. ATFI
exists to provide detailed information to the media, policymakers and individuals on why tolling
existing interstates will not solve our transportation needs.
A study to Design and comparison of Full Adder using Various TechniquesIOSR Journals
Abstract: Adders is widely used in applications such as digital signal processing (DSP) and microprocessors. In this paper Half adders are simulated and analyzed based on power dissipation, area and speed on 90nm technology using Microwind and Dsch tool. Half Adder is the basic building block in Parallel Feedback Carry Adder (PFCA). Keywords: Full adder, Half adder, PFCA, VLSI
Natural Radioactivity of Feed Coal and Its by-products in Barapukuria 2×125 M...IOSR Journals
The detection and measurement of radionuclides in feed coal, bottom ash and fly ash samples collected from Barapukuria 2×125 MW coal-fired thermal power plant in Dinajpur district of Bangladesh, have been performed by gamma ray spectrometry technique. The average activity concentrations of 226Ra, 232Th and 40K in feed coal, bottom ash and fly ash samples were 10.46±5.24, 23.50±10.88 and 232.23±131.94 Bqkg-1; 56.91±2.77, 69.22±4.26 and 189.79±64.65 Bqkg-1; and 70.91±2.90, 115.26±5.79 and 205.53±65.56 Bqkg-1; respectively. These measured values were compared with other literature values. The calculated absorbed dose rates were found higher than the worldwide average values for both the bottom ash and fly ash samples. Moreover, the radium equivalent activity in all the samples was less than 370 Bqkg-1 and external hazard indices were less than unity (except in FA-1). Therefore, there is no probability of immediate health effect on workers and public due to natural radioactivity present in the samples.
International Refereed Journal of Engineering and Science (IRJES)irjes
International Refereed Journal of Engineering and Science (IRJES) is a leading international journal for publication of new ideas, the state of the art research results and fundamental advances in all aspects of Engineering and Science. IRJES is a open access, peer reviewed international journal with a primary objective to provide the academic community and industry for the submission of half of original research and applications
In spite of the many advancementsinsafety technology, roadway design and engineering as well as
several policy initiativesaimed at addressingtraffic crashes (and it concomitant injuries and fatalities); it
continuesto saddle humanity and present significant health hazards and threats to the socio-economic wellbeing
of the inhabitants of this earth. Even though federal and state transportation engineers, policy makers, planners
and researchers have spent large sums of money and effort on this complex and ubiquitous problem, traffic
crashes is one of the top causes of fatal and non-fatal injuries in the United States. In this work a piecewise
approach was used to perform an exploratory,systemic characterization and analysis of the six-year (2008-
2013) traffic crash data from North Dakota to discover the nature, peculiarities and trends in the data.Several
important features and trends in the data were discovered and the outcome of this paper can be further used for
engineering design, planning and policy analysis. The research approach could be duplicated in any other state
to enhance its societal benefits. Heterogeneity and uncertainty will be fully addressed in future work.
In spite of the many advancementsinsafety technology, roadway design and engineering as well as
several policy initiativesaimed at addressingtraffic crashes (and it concomitant injuries and fatalities); it
continuesto saddle humanity and present significant health hazards and threats to the socio-economic wellbeing
of the inhabitants of this earth. Even though federal and state transportation engineers, policy makers, planners
and researchers have spent large sums of money and effort on this complex and ubiquitous problem, traffic
crashes is one of the top causes of fatal and non-fatal injuries in the United States. In this work a piecewise
approach was used to perform an exploratory,systemic characterization and analysis of the six-year (2008-
2013) traffic crash data from North Dakota to discover the nature, peculiarities and trends in the data.Several
important features and trends in the data were discovered and the outcome of this paper can be further used for
engineering design, planning and policy analysis. The research approach could be duplicated in any other state
to enhance its societal benefits. Heterogeneity and uncertainty will be fully addressed in future work.
Pedestrian Conflict Risk Model at Unsignalized Locations on a Community Streetcoreconferences
Crossing a street at unsignalized location can be dangerous to pedestrians, especially the elderly. This paper evaluate the pedestrianvehicle collision risk on specific roads to identify that the degree of Pedestrian safety requires pedestrian intervention such as road improvement. First, age was a significant variable in that older people tend to be at greater risk than the non-elder people. There was an insignificant difference between the PSM of approaching vehicles that were traveling at speeds less than 30 km/h and those traveling at speeds in the range of 30-50 km/h. Interestingly, conflicts when the speed of the vehicles exceeded 50 km/h, the risk of conflict risk was higher than it was for vehicles traveling at speeds below 30km/h. The ratio of conflict risk for crossing gradient topography road was about 21.7 times greater than that for the non-gradient topography area. Regarding safety facilities, the 30 km/h speed limit sign influenced the risk situation of conflict. The ratio of conflict risk for a road with the safety facility was about 0.395 times lower than that for an unmarked road.
Road Safety is a Prime Rule of Traffic System: A Case Study of Kolkataijtsrd
The main aim of this paper is to analyze the road accident in Kolkata. Analyze shows that the distribution of road accidental deaths and injuries in Kolkata varies according to age,gender,month and time.Age group 18-59 years is the most vulnerable population group.Though males phase higher level of fatalities and injuries than their female counterparts.Moreover road accidents are relatively higher in winter and during working hours.The main causes of accidents are poor condition of road,reckless driving,poor condition of vehicle and lack of awarness among people. Sumana Das"Road Safety is a Prime Rule of Traffic System: A Case Study of Kolkata" Published in International Journal of Trend in Scientific Research and Development (ijtsrd), ISSN: 2456-6470, Volume-2 | Issue-4 , June 2018, URL: http://www.ijtsrd.com/papers/ijtsrd14571.pdf http://www.ijtsrd.com/humanities-and-the-arts/geography/14571/road-safety-is-a-prime-rule-of-traffic-system-a-case-study-of-kolkata/sumana-das
IJRET : International Journal of Research in Engineering and Technology is an international peer reviewed, online journal published by eSAT Publishing House for the enhancement of research in various disciplines of Engineering and Technology. The aim and scope of the journal is to provide an academic medium and an important reference for the advancement and dissemination of research results that support high-level learning, teaching and research in the fields of Engineering and Technology. We bring together Scientists, Academician, Field Engineers, Scholars and Students of related fields of Engineering and Technology
CHARACTERIZING HAZARDOUS ROAD LOCATIONS AND BLACK SPOTS ON ROUTE N8 (DHAKA-BA...Fayaz Uddin
Road traffic accidents and corresponding causality are the most concerning issues in the transportation sector of a developing
country like Bangladesh where road crashes are remarkably high. According to police reported road traffic accident database,
every year about 2800 or more accidents occur in Bangladesh. This research analyzes the various accident data from year 2007
to 2012 using Microcomputer Accident Analysis Package (MAAP5) software in route N8 (Dhaka – Mawa – Barisal – Patuakhali
National Highway) in Bangladesh. This research reveals accident prone locations which are commonly termed as black spot and
Hazardous Road location (HRL) on the route N8 followed by establishing maps by Geographic Information System (GIS). Headon,
rear-end, overturning, side-swipe and hit-pedestrian are the most dominant types of accidents. Analysis shows that maximum
number of accidents occurred in fair weather in route N8. The result clearly indicates that buses contribute mostly in the
accidents.
IJRET : International Journal of Research in Engineering and Technology is an international peer reviewed, online journal published by eSAT Publishing House for the enhancement of research in various disciplines of Engineering and Technology. The aim and scope of the journal is to provide an academic medium and an important reference for the advancement and dissemination of research results that support high-level learning, teaching and research in the fields of Engineering and Technology. We bring together Scientists, Academician, Field Engineers, Scholars and Students of related fields of Engineering and Technology
The Alliance for Toll-Free Interstates (ATFI) was formed to educate the public about the
negative impact that tolling existing interstates has on our communities and businesses. ATFI
exists to provide detailed information to the media, policymakers and individuals on why tolling
existing interstates will not solve our transportation needs.
A study to Design and comparison of Full Adder using Various TechniquesIOSR Journals
Abstract: Adders is widely used in applications such as digital signal processing (DSP) and microprocessors. In this paper Half adders are simulated and analyzed based on power dissipation, area and speed on 90nm technology using Microwind and Dsch tool. Half Adder is the basic building block in Parallel Feedback Carry Adder (PFCA). Keywords: Full adder, Half adder, PFCA, VLSI
Natural Radioactivity of Feed Coal and Its by-products in Barapukuria 2×125 M...IOSR Journals
The detection and measurement of radionuclides in feed coal, bottom ash and fly ash samples collected from Barapukuria 2×125 MW coal-fired thermal power plant in Dinajpur district of Bangladesh, have been performed by gamma ray spectrometry technique. The average activity concentrations of 226Ra, 232Th and 40K in feed coal, bottom ash and fly ash samples were 10.46±5.24, 23.50±10.88 and 232.23±131.94 Bqkg-1; 56.91±2.77, 69.22±4.26 and 189.79±64.65 Bqkg-1; and 70.91±2.90, 115.26±5.79 and 205.53±65.56 Bqkg-1; respectively. These measured values were compared with other literature values. The calculated absorbed dose rates were found higher than the worldwide average values for both the bottom ash and fly ash samples. Moreover, the radium equivalent activity in all the samples was less than 370 Bqkg-1 and external hazard indices were less than unity (except in FA-1). Therefore, there is no probability of immediate health effect on workers and public due to natural radioactivity present in the samples.
International Refereed Journal of Engineering and Science (IRJES)irjes
International Refereed Journal of Engineering and Science (IRJES) is a leading international journal for publication of new ideas, the state of the art research results and fundamental advances in all aspects of Engineering and Science. IRJES is a open access, peer reviewed international journal with a primary objective to provide the academic community and industry for the submission of half of original research and applications
IJRET : International Journal of Research in Engineering and Technology is an international peer reviewed, online journal published by eSAT Publishing House for the enhancement of research in various disciplines of Engineering and Technology. The aim and scope of the journal is to provide an academic medium and an important reference for the advancement and dissemination of research results that support high-level learning, teaching and research in the fields of Engineering and Technology. We bring together Scientists, Academician, Field Engineers, Scholars and Students of related fields of Engineering and Technology
Traffic enforcers play a vital role to maintain public order and safety in our roads. The aim of enforcement was to prevent the occurrence of road traffic violations by means of control and punitive sanctions. This study was conducted to know the lived experiences of traffic enforcers in Ozamiz City, Misamis Occidental. It is a phenomenological study where the researchers made an interview guide questions to gather data on the traffic enforcers experiences. The study was conducted for the randomly selected traffic enforcers in Ozamiz City. Moreover, there were seven (7) traffic enforcers purposely selected to be part of the respondents of the research study. The respondent was selected with the criteria where he/she is a traffic enforcer and must have an experience at least 2 years. There were five (5) themes identified in the study namely Adversity in the fulfilment of duties, Encountering Harassment, Resistance, and Threats from the Motorists, Seeking Police Assistance in responding Aggressive Motorists, Responding with Calmness, Patience, and Respect to the Motorist, and Obedience to Traffic Rules. Based on the findings of the study, it shows that majority of the traffic enforcer’s encountered harassment, resistance and threats from the motorists. Some motorists are unapproachable, aggressive and too arrogant violators that still insist that they did not commit any traffic violations. It was recommended that the traffic enforcers of Ozamiz City may continue to show calm, patience and respect towards handling the rude behaviour of a certain motorist who violates the traffic law. Moreover, traffic enforcers encouraged motorists to always follow the traffic laws to avoid and lessen the accidents on the road and have a smooth flow of the traffic because if every motorist is disciplined, it can reduced the workload of the traffic enforcers and everyone can benefit to it.
Consequences of Road Traffic Accident in Nigeria: Time Series Approach Editor IJCATR
Road traffic accident in Nigeria is increasing at a worrying rate and has raised one of the country major concerns. We provided appropriate and suitable time series model for the consequences of road accident, the injured, killed and total casualty of the road accident in Nigeria. The most widely used conventional method, Autoregressive Integrated Moving Average (ARIMA) model of time series, also known as Box-Jenkins method is applied to yearly data on the consequences of road accident data in Nigeria from 1960-2013 to determine patterns of road traffic accident consequences; injured, killed and total casualty of the road accident along the Nigeria motorway. Appropriate models are developed for the accident consequences; injured, killed and total casualty. ARIMA (0; 2; 1) model is obtained for the injury and total casualty consequences, whilst ARIMA(1,2,2) model is obtained for the killed consequences, using the data from 1960-2011. The adequacy and the performance of the model are tested on the remaining data from 2012 to 2013. Seven years forecast are provided using the developed models and showed that road traffic accident consequences examined; injured, killed and total casualty would continue to increase on average.
Nowadays, road crashes become a growing worldwide problem and result in around 1 million deaths now occurs in developing countries. Huge economic losses are now being incurred annually in the ASEAN countries as a direct result of road crashes and the most recent research suggests annual losses across the region are now in excess of US dollar 14 billion per year (around 2.1% of annual GDP of ASEAN region). In Myanmar, thousands of healthy lives are lost by road accidents comparing with other ASEAN countries. A research was conducted on a section of Pyay road with its high-accident locations to study and evaluate the cause of its frequent accidents. Initial study indicated that most of the accidents were attributed to human elements. This was included by the fact that a high percentage of accident was caused by the collision of moving vehicle and pedestrian. Identifying and removing hazardous spots to improve road safety will primarily requires well documented record on those roads with high-accident locations. These data base can inform to urban transport planner for road safety improvement. Kyaing"Road Accident Study on Some Areas in Yangon" Published in International Journal of Trend in Scientific Research and Development (ijtsrd), ISSN: 2456-6470, Volume-2 | Issue-5 , August 2018, URL: http://www.ijtsrd.com/papers/ijtsrd15944.pdf http://www.ijtsrd.com/engineering/civil-engineering/15944/road-accident-study-on-some-areas-in-yangon/kyaing
Analysis of Machine Learning Algorithm with Road Accidents Data SetsDr. Amarjeet Singh
Beginning at now, street transport framework neglect to alter up to the exponential expansion in vehicular masses and to ascertaining the quickest driving courses and catastrophes inside observing differing traffic conditions is a critical issue right presently structures. To upset this issue is to explore the vehicle division dataset with bundle learning technique for finding the best street choice without calamity gauging by want aftereffects of best accuracy count by looking at oversaw AI figuring. In bits of information and AI, bundle strategies utilize diverse learning calculations to give indications of progress prudent execution. The assessment of dataset by facilitated AI technique (SMLT) to get two or three data takes after, factor perceiving proof, univariate evaluation, bivariate and multi-variate appraisal, missing worth medications and separate the information support, information cleaning/organizing and information perception will be done with everything taken into account given dataset. In addition, to look at and talk about the presentation of different AI figuring estimations from the given vehicle division dataset with assessment of GUI based street fiasco want by given attributes.
To Find out the Relationship between Errors, Lapses, Violations and Traffic A...inventionjournals
Background: The Manchester Driver Behaviour Questionnaire (DBQ) has been extensively used as predictor of self-reported road traffic accidents. The associations between lapses and the violation and error factors of the DBQ however, might be reporting a little bias. Aim: The current study aiming to explore the driving behaviours of cuddalore district and to investigate the relationship between error, violations, and lapses of DBQ and accident involvement. Methods: Current study is a relational study. 500 drivers Was selected randomly in cuddalore district Results: Finding indicated that significant relationship between driving error, lapses and violations, Also there are significant relations among traffic awareness of driving behaviors of participants.
ANALYSIS OF ROADWAY FATAL ACCIDENTS USING ENSEMBLE-BASED META-CLASSIFIERSijaia
In the past decades, a lot of effort has been put into roadway traffic safety. With the help of data mining, the analysis of roadway traffic data is much needed to understand the factors related to fatal accidents. This paper analyses Fatality Analysis Reporting System (FARS) dataset using several data mining
algorithms. Here, we compare the performance of four meta-classifiers and four data-oriented techniques known for their ability to handle imbalanced datasets, entirely based on Random Forest classifier. Also, we study the effect of applying several feature selection algorithms including PSO, Cuckoo, Bat and Tabu on improving the accuracy and efficiency of classification. The empirical results show that the Threshold
selector meta-classifier combined with over-sampling techniques results were very satisfactory. In this regard, the proposed technique has gained a mean overall Accuracy of 91% and a Balanced Accuracy that varies between 96% to 99% using 7-15 features instead of 50 original features.
Analysis of Roadway Fatal Accidents using Ensemble-based Meta-Classifiersgerogepatton
In the past decades, a lot of effort has been put into roadway traffic safety. With the help of data mining,
the analysis of roadway traffic data is much needed to understand the factors related to fatal accidents.
This paper analyses Fatality Analysis Reporting System (FARS) dataset using several data mining
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International Refereed Journal of Engineering and Science (IRJES)irjes
International Refereed Journal of Engineering and Science (IRJES) is a leading international journal for publication of new ideas, the state of the art research results and fundamental advances in all aspects of Engineering and Science. IRJES is a open access, peer reviewed international journal with a primary objective to provide the academic community and industry for the submission of half of original research and applications
Towards Improving Crash Data Management System in Gulf CountriesIJERA Editor
Scientific and analytical approaches to accident data collection, storage and analysis are essential in dealing with road safety problems. Police accident records in the majority of countries form the main (and sometimes the only) source of accident data. Access to the accident database is also important to identifying specific safety problems and evaluating the effectiveness of the countermeasure introduced. Accident data collection and analysis offered by technological innovation such as Electronic Data Entry (EDE), Electronic Data transfer (EDT), and Geographic Information system (GIS) are implemented in developed countries. Developing countries, including the Gulf countries, should take advantage of the experience of developed countries on how the advance accident data management system works to identifying, more accurately, the main factors contributing to traffic accident. The main purpose of this research is to provide information on accident statistics process in Virginia state, starting from the time of accident occurring until it is stored in the database, with the aim of using it towards improving the process of collecting and maintaining accident data system in Gulf countries. The task is performed by reviewing the relevant international literature and interviewing police officers in charge and academic researchers in order to compare the accident data management system and also the quality of the data. Recommendations towards developing the crash data management system will be obtained based on the research results and international experience.
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Traffic Accident Data Profiling and Clusteringwith Data Mining Process
1. IOSR Journal of Computer Engineering (IOSRJCE)
ISSN: 2278-0661, ISBN: 2278-8727 Volume 6, Issue 2 (Sep-Oct. 2012), PP 14-22
www.iosrjournals.org
www.iosrjournals.org 14 | Page
Traffic Accident Data Profiling and Clusteringwith Data Mining
Process
Ogwueleka, Francisca Nonyelum1
and Ogwueleka, Toochukwu Chibueze2
1
Department of Computer Science, Federal University of Technology, Minna
2
Department of Civil Engineering, University of Abuja
Abstract: Some of this traffic accident crisis in Nigeria is caused by the increase in number of vehicles and
inefficient drivers on the road, bad condition and poor maintenance of the roads. The significance of the study
lies on the profiling of clusters of traffic roads in terms of accident related data and the degree in which these
accident characteristics are perceptive between the different created clusters. Applying data mining process to
model traffic accident data records helped in obtaining the characteristics of drivers’ behaviour, road condition
and weather condition that are connected with different injury severities and death. The traffic roads are
divided into a low accident risk and high accident risk traffic roads, determining accidents in different age
categories and period of accidents. A design of a data mining model for analysis and prediction of accidents
rate in Nigeria was presented. In this study, we profiled traffic roads, differentiated the data set into pre-
processing and transforming data set; created the association rules; and post-processed the frequent accident
item sets. The data mining function was used and data cleaned using feature selection.
Keywords: Data mining, road accident, profiling, vehicles, clusters, traffic road
I. Introduction
The amount of accident data stored in Nigeria‟s Federal Road Safety Commission (FRSC) database
grows every twelve months at a rate of 100%, which shows that a lot of data are obtained and still more data are
still being collected. Data mining is a useful tool to tackle the need for sifting useful information such as hidden
patterns from databases; especially now the accumulation of data is increasing in an alarming rate. Knowledge
of remarkable patterns of data is important subjects to be considered to regulate strategies, make proper and
maximum use of data, and then discover latest opportunities. Data from many sources are gathered and
organized in a consistent and useful manner for effective learning and result. The collected data must also be
analyzed, understood, and turned into suitable information. This is the stage where the application of data
mining is needed.
A road traffic accident is defined as any vehicle accident occurring on a public highway. It includes
collisions between vehicles and animals, vehicles and pedestrians, or vehicles and fixed obstacles. Single
vehicle accidents, which involve a single vehicle that means without other road user, are also included
(Safecarguide, 2004). The cause that affects traffic accidents can be a factor or combination of many factors.
The basic factors, which cause or increase the severity of probable accidents, are driver‟s behaviour, vehicle
features, highway characteristics, environmental effects and traffic characteristics (Ozgan, 2003).
Data mining is a process that extracts knowledge by analyzing data to discover hidden patterns and
dependencies in the database (Hand et al, 2001; Berthold et al, 2003). Applying data mining techniques to
model traffic accident data records can help to understand the characteristics of drivers‟ behaviour, road
condition and weather condition that are connected with different injury severities and death. This can help
decision makers to formulate better traffic safety control policies.
Traffic volumes of number of vehicles per day and road lengths in kilometre are the most important
explanatory variables in an accident prediction model, both for road sections and intersections. The parameters
of the model can vary between road types and countries because road characteristics, user behaviour and vehicle
types can differ. An accident prediction model is a mathematical formula describing the relation between the
level of existing road safety such as crashes, injured, fatalities etc. and variables that explain this level such as
road length, width, and traffic volume.
RTA is endemic in Nigeria, with seasonal epidemics (Asogwa, 1978). The police records show that
between 1980 and 1989, a total of 98,168 Nigerians died and 244,864 were injured in RTA (NPFM, 1989).
These averaged about 10,000 killed and 25,000 injured annually (NPFM, 1989). A study has shown that 1 out of
3 and 1 out of 9 of the Nigerian population stand the risk of getting injured or killed respectively, on a yearly
basis from RTA (Ezenwa, 1986). In spite of the concerted effort at reducing the rate of RTA, Nigeria still
ranked amongst the highly affected nations of the world (Agunloye, 1988). It is even more disturbing to note
that the young adults group, the economic backbone of a nation, is most affected by this ravaging menace
(Oyemade, 1973; Asogwa, 1980).
2. Traffic Accident Data Profiling and Clusteringwith Data Mining Process
www.iosrjournals.org 15 | Page
Some studies done on data mining and its techniques used in modeling or predicting accidents are the
used of data mining techniques in predicting driver‟s behaviour so that unsafe actions can be rectified
(Krishnaswamy et al, 2005); Pande and Abdel-Aty (2006) applied data mining techniques to predict rear-end
crashes on highways and warn drivers about potential crashes 5-10 minutes prior to the crash; Sohn et al. (2003)
applied data fusion, ensemble and clustering to improve the accuracy of individual classifiers for two categories
of severity (bodily injury and property damage) of road traffic accident; Cameron (1997) indicates that
clustering methods are an important tool when analyzing traffic accidents as these methods are able to identify
groups of road users, vehicles and road segments which would be suitable targets for countermeasures; and in
Ng et al (2002), a combination of cluster analysis, regression analysis and Geographical Information System
(GIS) techniques is used to group homogeneous accident data together, estimate the number of traffic accidents
and assess the risk of traffic accidents in a study area.
From a statistical perspective it can be viewed as a computer automated exploratory data analysis of
large complex data sets (Friedman, 1997). Data sets can be much larger than in statistics and data analyses are
on a correspondingly larger scale (Hosking et al., 1997). Statistical models are preferable when fairly simple
models are adequate and the variables can be identified before modeling, but when dealing with a large and
complex data set of road accidents, data mining methods are more useful to identify the relevant variables
towards a better understanding of accident circumstances.
In this study, data mining process was used to analyze and model traffic accident data records for
obtaining the characteristics of drivers‟ behaviour, road condition and weather condition that are connected with
different injury severities and death; and also in profiling of clusters of traffic roads for accident related data and
the degree in which these accident characteristics are perceptive between the different created clusters.
II. Analysis Of Road Accident In Nigeria
In the late fifties and early sixties, there was little or no concern about road safety matters in Nigeria.
Insignificant awareness and concentration was given to road traffic crashes, prevention strategies and remedies;
as economic activities were very low, the incidents of road traffic crashes were invariably low in relation to low
vehicle volume plying the equally scanty routes in the country. Mostly, railways or waterways undertook
haulage. The dawn of civilization brought about urbanization, education, and increase in infrastructure
development. These developments in economic activities gave rise to numerical increase in vehicular statistics
to meet up with the sharp demand of a developing economy.
Osime et al. (2006) observed in their study that between 1970 and 1979, there were 285 699 reported
cases of RTA, while there were 57,136 deaths, representing 20%. On the other hand, the period between 1990
and 1999 recorded 188,012 cases of RTA with 76,870 deaths, accounting for 41%. There may be several
explanations for this. The oil boom in Nigeria was experienced in the 1970s and many people were possibly
financially empowered and so were able to buy cars. Also during this period, the value of the Naira was high.
Most of the roads were also in good repair. But because not many people had been exposed to the use of cars
before then, there were many cases of RTAs. Also, because the experience was relatively new, it could be
assumed that there were few cases of speeding. Thus, with the good roads and reasonable speed on the part of
the drivers, even though there were many cases of RTAs, the deaths were just about 20%. However, a sharp
contrast is observed during the period between 1990 and 1999. Even though the number of RTAs has declined
relatively, the mortality rate increased to 41%. This is the period when the country started to observe an
economic downturn. Consequently, most people were no longer able to buy new cars, instead there was a high
demand for used vehicles with the attendant consequences of increasing fatalities on the roads. Also, because of
the poor economy, most roads were now in a state of disrepair becoming more prone to fatal accidents. It was
also within this period that the health-care facilities witnessed utter neglect and were barely able to handle cases
resulting from RTAs.
Poor road structure and population growth have greatly led to increase in the roads and accident rate.
To reduce the accidents, the Federal Road Safety Corps (FRSC) was established by the government of the
Federal Republic of Nigeria in 1988 (vides Decree 45 of 1988 as amended by Decree 35 of 1992, with effect
from 18th
February, 1988). The Commission was charged with responsibilities for, among others, policymaking,
organization and administration of road safety in Nigeria. FRSC Corps Marshal and Chief Executive has
estimated that Nigeria currently loses three billion naira every year to road crashes. Road crashes cost Nigeria
13% of her gross national product (GNP), which inhibits economic and social development (Idoko, 2010).
Nigeria loses about 3% of GDP from Road Traffic Crashes, that is, about 17% of current National reserves.
Income lost from 2009 road traffic collision in Nigeria was more than the GDP of over 20 individual African
countries.
In Nigeria, human factor is believed to constitute about 85% of the recorded causes of road traffic
accidents. Various researches conducted in Nigeria are of the consensus that accidents through the human factor
results from drunk driving, drugs, poor driving skills, health problems psychological problems and
temperament. These manifest in different ways among drivers. In a study Ogunsanya and Waziri (1989)
3. Traffic Accident Data Profiling and Clusteringwith Data Mining Process
www.iosrjournals.org 16 | Page
identified the human/driver related factors as the single most important contributory factor to the increasing tide
of traffic accident in Nigeria. Such behavioural attitude of the drivers that had earned him this reputation
include: cutting corners, sleeping on steering and fatigue, faulty trip preparation; ignorance of the highway code,
driving under the influence of alcohol; uncorrected bad eye sight; refusal to use seat belts, inability to handle
emergency, wrong signalling, overtaking and incompetent manoeuvring.
A study of road accident trends in Nigeria between the period 1960 and 1989 revealed a sharp increase
in fatal accident occurrence. Between 1960 and 1969, it was observed that over 18,000 deaths occurred as a
result of road accidents. By the third decade (1980–1989), this figure had increased to about five times, that is,
more than 92,000 deaths (Oluwasanmi, 1993). The road crash situation in Nigeria is total of 969,850 reported
cases of road crashes from 1960 to 2004, as well as 275,178 person killed with 843,691 people injured during
the same period. There is a dramatic reduction in the rate of road crash from 1988. Analysts have ascribed this
improvement to the activities of the Federal Road Safety Commission in Nigeria since 18th
February 1988. The
mandate of the Federal Road Safety Commission is to reduce the rate of traffic crashes to the minimum since at
this moment, zero vision has not been contemplated in Nigeria. Enforcement and raising awareness are the main
strategies adopted by the Commission as the means of promoting road safety in Nigeria.
The number of wounded and dead people is currently increasing rapidly in Nigeria. If the present trend
continues, by the year 2020 road traffic accidents will be the second most noted cause of fatalities in the world.
Traffic accidents gave rise to large economic costs, deep human suffering and tragedy. This development is
serious since traffic accidents can be prevented. A road traffic system that is sustainable in the long term may be
achieved if the traffic safety work is developed and intensified.
According to statistics obtained from Federal Road Safety Corps (FRSC) in Abuja, about 4,120 persons
lost their lives while 20,975 others were seriously injured in fatal accidents that involved 11,031 vehicles across
the nation in 2009. The FRSC recorded 11,341 accidents with total number of deaths put at 6,661 and 27,980
injured in 2008. Also, between January and June 2010, 5,560 cases of auto accidents were recorded in which
3,183 persons lost their lives and 14,349 others sustained various degrees of injuries.
The road traffic accidents (RTA) data obtained from the Federal Road Safety Commission and
Nigerian Police Force was from 1998 to 2010. In 2003, there were 16,795 reported cases of road traffic
accidents; 28,215 injured persons and 8672 deaths.Table 1: A graphical representation of the reported number of
road traffic accident cases from 1998 to 2010,
Table 1: A graphical representation of the reported number of road traffic accident cases, the injured and deaths
from road traffic accidents (RTAs).
Year Total cases reported No. of persons killed No. of persons injured
1998 17,117 6578 17,547
1999 12,503 5953 18,000
2000 12,325 6336 20,555
2001 15,621 7845 26,745
2002 16,452 8452 27,102
2003 16,795 8672 28,215
2004 14,279 5351 16, 897
2005 8962 4519 15,779
2006 9114 4944 17,390
2007 9132 4916 20,944
2008 11,341 6661 27,980
2009 11,031 4120 20,975
Jan-June
2010
5,560 3183 14, 349
III. Methodology And Results
In this study, we profiled traffic roads, differentiated the data set into pre-processing data set and
transforming data set; created the association rules; and post-processed the frequent item sets. The data mining
function was used. Data was cleaned and using feature selection, we selected the required features necessary for
the data set and the categorization task. The data was modified and aggregated.
The data mining approach involves steps, which is illustrated in Figure 1 (Ogwueleka, 2011):
1. Select an appropriate algorithm
2. Implement the algorithm in software
3. Test the algorithm with known data set
4. Evaluate and refine the algorithm as you test with other known data sets
5. Publish the results.
4. Traffic Accident Data Profiling and Clusteringwith Data Mining Process
www.iosrjournals.org 17 | Page
The four basic steps, which were used in order to complete this data mining implementation on road traffic
accident. They are data selection, data transformation, applying algorithms and results interpretations. The
objective of data selection was to determine the type of information and the way it is organized. Some part of
the road accident data available from the source data file was required and it helped in quick collection of
relevant data after identification. The required road traffic data was sampled and the sample also mined. After
data selection, the data was transformed, and then algorithms were applied in order to extract the required
information, which will aid in achieving the required objective. The result of applying data mining algorithms
was interpreted and also analyzed using a visualization and decision support tool. The designed model was
validated and tested. There was need in some aspect to refine the data and repeat the process sequence again.
3.1 Data collection
Types of information that the road safety office records about an accident include driver and vehicle
characteristics, road and weather conditions, date and time of the accident, type, injury severity and possible
causes of such accidents. The specific attributes by which a given accident can be described are date and time,
accident identity, driver‟s name, vehicle type, driver‟s age, driver‟s gender, driver‟s educational level, driver‟s
license status, relation of the driver and vehicle, driver‟s experience, possession of the vehicle, vehicle defect,
vehicle age, accident area, accident road name, road segment separation, road direction, road surface type,
roadway surface condition, light condition, weather condition, vehicle maneuver, accident type, total vehicles
involved, total number of victims, accident victims category, victims profession, victims health condition,
pedestrian maneuver, vehicle plate number, cost estimate of the damage and cause for accident. In addition to
the input variables mentioned above the output variable for this research that is injury severity is also another
attribute of a given accident. The target attribute, injury severity, has four classes: fatal injury, property damage
(no injury), serious injury and slight injury.
These categorizes of data were collected at the Federal Road Safety Corps (FRSC) and Nigerian Police
Force (NPF) offices during data collection and used in the analysis.
3.2 Profiling Traffic Roads
We clustered and profiled each traffic road item. We used the two components covariance model,
which groups the traffic roads into two clusters. These clusters shows different results for the general accident
risk on the roads, as it is not every accident variable that is important when describing the different set of traffic
roads. A comparative analysis between the accident characteristics of the different clusters is conducted, which
5. Traffic Accident Data Profiling and Clusteringwith Data Mining Process
www.iosrjournals.org 18 | Page
provides new insights into the complexity and causes of road accidents. The data set was differentiated into pre-
processing data set and transforming data set. These two steps used in the data set mining process were for the
preparation of the data obtained, for generating frequent item sets and in used in the post-processing step for
pattern decoding and evaluation.
3.2.1 Pre-processing and modifying the data set.
The data set of road traffic accidents was divided into two clusters depending on the type of traffic
road. In the first cluster, we got fifteen (15) traffic roads with forty (40) records of road traffic accident; and in
the second cluster, for the eight (8) traffic roads, one hundred and twenty-five (125) road traffic accident records
was obtained. The discriminating character of the accident characteristics for the two clusters was established
through result comparison of the two analyses.
3.2.2 Traffic roads profiling.
Each cluster of traffic road was profiled and grouped into two clusters displaying the different results
for the whole accident risk on the roads. As all variables in all accidents are not so significant in determining the
various groups of traffic roads, we conducted an analysis between the accident characteristics of the different
clusters, which provided the possible solution into the complexity and causes of road accidents.
3.2.3 Creating the rules.
In choosing the association rules, a lot of issues were considered, for example, choosing low minimum
support rules can lead to poor use of result due to the computer memory margins and if a too high support
parameter is chosen, the resulting algorithm will only be capable of generating trivial rules. Therefore, in the
analysis, minimum support value thirty-five (35) was used.
The generated algorithm obtained 30520 frequent item sets with a set minimum support of thirty
percent (30%) of maximum size of 5 in the first cluster, while in the second cluster, 29055 frequent item sets
were obtained with the same maximum size and minimum support.
3.2.4 Post-processing the frequent accident item sets.
The item sets that are frequent for both groups of accidents were chosen and the accident patterns
chosen are descriptive for the first cluster and the second cluster, resulting to 25558 accident patterns. The
discriminating character of these accident patterns was determined by means of a specific interest measure. The
frequent items having positive interest value of “1” was chosen and used. Analysis showed that the second
cluster has stronger accident patterns and is also the cluster with the highest accident risk. I > 0 was used for
selecting the item sets and 5 resulted in 20 item sets of size 305 item sets of size. For 325, we got item size of 4.
The first and second cluster in accidents for frequent item sets is shown in Table 2.
Table 2: First and second cluster in accidents for frequent item sets in town
Item 1 Item 2 Item 3 Item 4 S1 Lift1 S2 Lift2 I
Weekday Town 2 road
users
45,16% 0,94 71,96% 1,02 0,37
Weekday Road user
age <18
and >29
38,71% 0, 92 59,
81%
1,02 0,35
Dry road
surface
Town Weekday 38,70% 0,84 57,
94%
0,99 0,33
Straight
direction
Town Normal
weather
Weekday 32,25% 0,74 52,33% 0,97 0,38
Side
collision
Female
road user
Normal
condition
Weekday 35,48% 0,88 55,14% 1,02 0,35
Side
collision
Town Weekday Car 38,70% 1,03 57,94% 1,09 0,33
Straight
direction
50km/hr Daylight 32,25% 1,10 46,72% 1,06 0,30
Results of table 2 show that the accident patterns that occur more frequently in cluster 2 than cluster 1
often occur on a weekday, inside the built up area (town) with 2 road users [N=1], on a dry road surface with the
road user‟s age <18 and >29. Accidents involving a female road user, driving a car is noted to be during the
weekday and in normal condition with I = 0,35. Also, a road user frequently driving in a straight direction with a
speed limit of 50 kilometers per hour in daylight, during normal weather on a weekday has I = 0,30. It was noted
that accidents in sideways collision are during the weekday in normal condition.
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The data in the databases are collected from Federal Road Safety Commission, Abuja-Nigeria. The data
are pre-processed through duplicate removal and supplying of missing values. Data was transformed to a format
suitable for clustering because data elements with high similitude are bunched up within same cluster while data
elements with less similarity are crowded up in different clusters through unsupervised classification of patterns
into groups. To prepare the data suitable for mining process, data needs to be transformed accordingly. This pre-
processed data is refined further to convert it to a format compatible for clustering. Clustering was performed
with k-means algorithm.
3.3 Data Mining Function
All accident record in the data set is an input/output pair with an associated output. The output variable,
which is the target feature is categorical and has four classes made up of fatal injury (deadly injury), property
damage (no injury), serious injury (severe injury) and slight injury (minor injury). A supervised learning
algorithm was used to map an input vector to the preferred output class. In this supervised learning algorithm, an
input vector is presented at the inputs together with a set of desired responses, one for each variable for the
output.
3.4 Data Cleaning
In any large volume of data set, there is always possibility of errors as most collected data are not clean
and constitutes different features, some of which are not needed in the data mining process. During data
cleaning, some features in the traffic records were removed. These features include license class of the driver;
ownership of the vehicle; name and section of the road; category, occupation, accident day, estimate of the
damage cost; driver‟s educational level; health condition, relation of the driver and the vehicle; total number of
vehicles involved and their plate number; accident areas and road direction; accident date and time; and vehicle
fault.
3.5 Feature Selection
After cleaning the data, some features were removed. In selecting the required features necessary for
the data set and the categorization task, an approach was used approach to ensure that all selected feature is
significant. The selected features with their data type and description are shown in Table 3. For all selected
feature that is numerical, N is used while T is used for text features.
Table 3:Selected features with their data type and description
S/N Feature Name Data Type Description
1 Accident_ID N Identification number used for a specific accident
2 Driv_Name T Driver‟s name
3 Driv_Age N Driver‟s age
4 Driv_Exp N Driver‟s years of driving experience
5 Driv_Gender T Driver‟s Gender
6 Vehi_Type T Vehicle type
7 Vehi_Age N Vehicle service year
8 Road_Cond T Condition of road at the time of accident
9 Weather_Cond T Weather condition at accident time
10 Acci_Type T Type of accident
11 Acci_Cause T Cause of accident
12 Inj_Type T Injury type class incurred from accident
3.6 Data modification and Aggregation
Data was modified; the features derived were produced and categorized using different feature names.
In the driver‟s experience classification is denoted as Driv_Exp and it is the base feature of driver‟s experience
categorizing the input values into three as no experience, between the range of 1 to 10, and above 10 years.
The driver‟s age is featured as Driv_Age category. It classified the input values as 18, between 18 and
30, 31 and 50 and above 50 years; while Vehic_Agewas derived from the feature of vehicle age to classify the
input values as less than 1, between 1 and 2, 3 and 5, 6 and 10 and above 10 years. The data feature
modification, aggregation and categorization helped to condense the features to reduced size for accurate and
reliable result. The modified features are shown in Table 4.
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Table 4: Derived features with their base features
Feature Name Derived Feature
Driver‟s experience Driv_Exp_Cate
Driver‟s age Driv_Age_Cate
Vehicle‟s age Vehic_Age_Cate
The final dataset used for modeling had 3, 640 records expressed by 15 features of 12 base features and
3 derived features. Using the dependent variable, injury type, the records obtained are fatal injury is 428
(11.7%); serious injury is 400 (11%); slight injury is 695 (19.1%); and no injury is 2110 (58%).
IV. Discussion
Comparing 2004 and 2005 RTA summary from Table 5, there is an observed 37% reduction in total
RTA cases; 16% reduction in the number of persons killed; and 7% reduction in the number of persons injured.
Table 5: Summary of 2004 and 2005 RTA
Year 2004 2005 Remarks
Total reported RTA cases 14279 8962 37% reduction in RTA
Persons killed 5351 4519 16% reduction in the number of persons killed
Persons injured 16897 15779 7% reduction in the number of persons injured
Table 6(a): 2005 RTA summary Table 6(b): 2004 RTA summary
Month Total cases
reported
Persons
killed
Persons
injured
Month Total cases
reported
Persons
killed
Persons
injured
Jan 980 447 1760 Jan 1333 544 1550
Feb 1040 358 1267 Feb 1039 397 1572
March 591 359 1178 March 1312 498 1705
April 679 450 1373 April 1498 481 1458
May 1118 556 1567 May 1206 440 1459
June 841 381 1291 June 1144 476 1661
July 438 276 1045 July 487 233 761
Aug 956 399 1518 Aug 1136 365 1354
Sept 630 289 955 Sept 829 963 428
Oct 376 224 1117 Oct 1925 383 1279
Nov 624 325 1128 Nov 1036 455 1526
Dec 689 455 1580 Dec 1104 542 1598
Total 8962 4519 15779 Total 14049 5777 16351
From the comparison of 2004 and 2005, it was observed that 2004 has higher reported RTA cases, number of
persons killed and also in number of persons injured.
Fig. 2 presents the trend in RTA from 2000 to 2007. The total number of RTA in 2007 was 12,038 representing
an increase of 3.2% over that of 2006 and a 2.8% increase over the 2000 figure.
Fig.2: RTA 2000 to 2007
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From the analysis of 2004 against 2005 and also from 2000 to 2007, the RTA target verses actual from 2001-
2015 were obtained through prediction from collected data. Fig.3 shows the predicted RTA for 2010 to 2015.
Fig. 3: RTA fatalities target vs. actual 2001 to 2015
Since the dataset of this experiment has an unbalanced dependent class, injury severity, using a random
sample will most likely result the minor class belonging in only one of the partitions. In order to overcome this
problem the balanced partitioning option was used. To validate model, a dataset is usually divided into two
partitions. One is used for training, the learn partition, and the other is held back for testing, the validation
partition. The dataset was divided into the training set (75%) and validation set (25%). After partitioning the
training dataset contained 3493 (75% from each class) records and the validation set contained 1165 (25% from
each class) records.
V. Conclusion
In this study, the association algorithm was used on a data set of traffic accidents to profile the two
clusters of traffic roads. The analysis showed that by generating frequent item sets the identification of accident
circumstances that frequently occur together is made possible leading to better clarification and accurate
analysis of the occurrence of traffic accidents. The used frequent item sets describes the co-occurrence of
accident conditions and also gave direction to more information and guidance helping road traffic agencies or
governments to adapt their traffic policies to the different kind of accident circumstances. The results of this
study indicate that the use of the association algorithm do not only allow a descriptive analysis of accident
patterns within one cluster, but also create the possibility to find the accident characteristics that are distinguish
the two classified traffic roads. For the traffic roads with a low accident risk, crossroads with priority to the right
is one of the accident problems while in the results for the high accident risk traffic roads, these accidents are
observed to occur in different age categories and also during the weekends. This research analysis shows that
traffic policy towards these clusters should be considered, since each cluster is characterized by specific
accident circumstances, which require different measures to enhance the traffic safety.
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