This document discusses different types of traffic speed studies including spot speed studies, travel time studies, and speed delay studies. It then provides details on specific objectives, scope, and methods of conducting traffic speed studies. The document presents data from a traffic speed study conducted at two intersections in Dhaka, including spot speeds, histograms, frequency and cumulative frequency curves. It analyzes the data to determine weighted average speed, pace, modal speed and compares time mean speed to space mean speed based on the Wardrop relationship. Finally, it calculates delay time, value of travel time and vehicle operating costs.
Detailed description of Capacity and Level of service of Multi lane highways based on Highway Capacity Manual (HCM2010) along with one example for finding LOS of a highway
Origin and Destination ( O-D) Study. defined all types very well with advantages and disadvantages. Introduction of OD, Objective of OD Study
Information required for OD
OD Survey Types
Methodology
Road Side Interview Method
License Plate Method
Tag on Car method
Home Interview method
postal method
online survey method
commercial and public vehilce method survey
OD MATRIX
Desire line diagram and Flow Line diagram
Conclusion and Reference.
Detailed description of Capacity and Level of service of Multi lane highways based on Highway Capacity Manual (HCM2010) along with one example for finding LOS of a highway
Origin and Destination ( O-D) Study. defined all types very well with advantages and disadvantages. Introduction of OD, Objective of OD Study
Information required for OD
OD Survey Types
Methodology
Road Side Interview Method
License Plate Method
Tag on Car method
Home Interview method
postal method
online survey method
commercial and public vehilce method survey
OD MATRIX
Desire line diagram and Flow Line diagram
Conclusion and Reference.
Transportation Engineering
Brief study on measurement of spot speed with the help of enoscope for diploma engineering students of civil engineering stream.
BASED ON BTECH CIVIL ENGINEERING SYLLABUS,PRESENTATION OF TRAFFIC VOLUME STUDIES,OBJECTS OF TRAFFIC VOLUME STUDIES
TRAFFIC VOLUME STUDIES IS ONE OF THE TRAFFIC ENGG. STUDIES
Accident study and analysis, objective, causes of accidents, and analysis of accident (collection of data and preparing reports and record) , types of accidents, and statistical analysis of accidents.
Spot speed studies are used to determine the speed
distribution of a traffic stream at a specific location. I The data gathered in spot speed studies are used to determine vehicle speed percentiles, which are useful in making many speed-related decisions
Our project is the complete study about both Spot speed studies and Speed delay time survey. This topic is a part of Transportation Engineering. This report helps you to understand this topic in detail. This report will also help you to make project on associated topics in traffic engineering. In spot speed, We discussed regarding various methods available to perform the test, Our team practically performed test and established a speed limit zone near a school. Coming to speed delay time survey, we conducted a survey at a selected stretch and came out with solutions to the problems faced by the vehicle users using that stretch.
Transportation Engineering
Brief study on measurement of spot speed with the help of enoscope for diploma engineering students of civil engineering stream.
BASED ON BTECH CIVIL ENGINEERING SYLLABUS,PRESENTATION OF TRAFFIC VOLUME STUDIES,OBJECTS OF TRAFFIC VOLUME STUDIES
TRAFFIC VOLUME STUDIES IS ONE OF THE TRAFFIC ENGG. STUDIES
Accident study and analysis, objective, causes of accidents, and analysis of accident (collection of data and preparing reports and record) , types of accidents, and statistical analysis of accidents.
Spot speed studies are used to determine the speed
distribution of a traffic stream at a specific location. I The data gathered in spot speed studies are used to determine vehicle speed percentiles, which are useful in making many speed-related decisions
Our project is the complete study about both Spot speed studies and Speed delay time survey. This topic is a part of Transportation Engineering. This report helps you to understand this topic in detail. This report will also help you to make project on associated topics in traffic engineering. In spot speed, We discussed regarding various methods available to perform the test, Our team practically performed test and established a speed limit zone near a school. Coming to speed delay time survey, we conducted a survey at a selected stretch and came out with solutions to the problems faced by the vehicle users using that stretch.
O Centro de Excelência em BRT Across Latitudes and Cultures (ALC-BRT CoE) promoveu o Bus Rapid Transit (BRT) Workshop: Experiences and Challenges (Workshop BRT: Experiências e Desafios) dia 12/07/2013, no Rio de Janeiro. O curso foi organizado pela EMBARQ Brasil, com patrocínio da Fetranspor e da VREF (Volvo Research and Education Foundations).
Traffic speed analysis presentation- ahmed ferdous-1004137 buetAhmed Ferdous Ankon
Traffic speed analysis presentation- ahmed ferdous-1004137 buet
Please remind this is not a unique effort..My Classmates and specially Ahasanullah Un iversity Students were a major help...We have tried DATA ANALYSIS part to be a solo doing ..But other parts are nearly copy past from net especially from AUST ian...Hope you can do the whole on your own.....
Presentation on Spot Speed Study Analysis for the course CE 454nazifa tabassum
This presentation describes the process of Spot Speed Study Analysis, how it can be performed and how the findings from such studies can help to improve road design in urban areas.
Portable Emissions Measurement Systems (PEMS) provide direct real-time data on the emissions of an in-use vehicle under a wide range of real-world operating conditions. In recent years PEMS technology has undergone a very rapid evolution and data gathering activities are now widespread, especially in the US and Asia. But, by comparison, methods used to analyze PEMS data have received relatively little refinement over the same period. The reason for this is in part legislative, but it also reflects an issue that is much more fundamental and commonplace – if datasets are large and noisy, someone has to put a lot of work in if you want to get good information out.
Current PEMS data analysis is perhaps most easily considered in terms of its two extremes, total journey and raw data analysis, as most current practices fall into one of these two categories. Here, we considered these and an alternative ‘middle ground’ approach, micro trip analysis. We also look at different micro-trips sampling strategies and some automation procedures for the routine use of such methods on a much wider range of research questions.
www.its.leeds.ac.uk/people/k.ropkins
Dr Glyn Rhys-Tyler - Road vehicle exhaust emissions; 'an age of uncertainty' ...IES / IAQM
DMUG remains the key annual event for experts in this field. Unmissable speakers will be examining topical issues in emissions, exposure and dispersion modelling.
Quantifying the impact of micro vehicles on trips, vehicle miles traveled (VMT) and the present value of transportation. Presentation at the second Micromobility Summit, Techfestival, Copenhagen, September 5, 2018.
The Nonwoven Uniformity has been tried to derive here with a mathematical expression which can be helpful for people to understand very easily and communicate this with meaningful way.
Uniformity of Web Formation_Thermal Bonded Nonwovens Fabricabhijit12491
In this study we are trying to establish mathematical formula to expressing the uniformity level for thermal bonded nonwovens fabric. Hoping this will be interesting and helpful.
Data Analytics for Improving Energy Efficiency in Short-Sea ShippingMohamed Abuella
Descriptive, Predictive, and Prescriptive Analytics for Improving Energy Efficiency in Short-Sea Shipping. This project presents the major findings of the data analytics for improving the fuel consumption of a passenger ship in Archipelago of Gothenburg, Sweden.
Descriptive, Predictive, and Prescriptive Analytics for Improving Energy Efficiency in Short-Sea Shipping. This project presents the major findings of the data analytics for improving the fuel consumption of a passenger ship in Archipelago of Gothenburg, Sweden.
Presentation by Dr James Tate, February 2016
http://futurepowertrains.co.uk
www.its.leeds.ac.uk/people/j.tate
www.its.leeds.ac.uk/research/groups/safety-and-technology/vems
2. Types of Speed Studies
July 22, 2012 Traffic Speed Studies2
Spot Speed Studies
spot speed studies to measure
speeds at specific locations
# studies speeds at specific
locations
#determine the design speed
# aid in conducting safety studies
#analyze special operational
situations
TravelTime Studies
Travel time is the time taken by
a vehicle to cross a given
segment of a street or highway
#evaluate the effectiveness of
traffic improvements
#provide economic analyses of
alternatives
#evaluate trends in efficiency and
level of service
Speed Delay Studies
Delay is the time lost by a
vehicle due to causes beyond
the control of the driver
#identify problem areas
#determine the efficiency of a
route
#evaluate effectiveness of traffic
improvements
# provide economic analyses of
alternatives
3. Specific Objectives of Traffic Speed Study
DetermineVehicle
Spot Speed During
Survey Period
Plot Histogram,
Frequency Curve &
Cumulative
Frequency Curve
DetermineWeighted
Average Speed, Pace,
modal Speed, speed
Limit, design Speed
DetermineTime Mean
Speed(Vt) & Space
Mean Speed(Vs),and
Proof Vs <Vt
ProofThe Wardrop
Relationship Between
Time Mean Speed(Vt) &
Space Mean Speed(Vs),
Find DelayTime & Cost
Of Delay
Draw Speed –Flow
Curve
4. Scope ofTraffic Speed Studies
Establishing the
effectiveness of
new or existing
speed limits
Magnitudes,
classifications
and the time
and directional
split of vehicular
flows.
Time and
directional split of
vehicle is useful to
identify tidal flow.
Determining
appropriate speed
limits for
application
Investigation of
high-accident
locations at which
speed is
suspected to be a
contributing
cause to the
accident
experience.
Specific control
for the timing of
“yellow” and “all
red” intervals for
traffic signals,
placement of
signs, and
development of
signal
progressions.
5. Speed Determining Methods
July 22, 2012 Footer text here5
STOPWATCH METHOD
RADAR METER
METHOD
PNEUMATIC
ROADTUBE
METHOD
For the unavailability of Radar &
Pneumatic Road Tube method we had
to use Stopwatch.
6. Survey Area
July 22, 2012 Footer text here6
Panthapath-Green road intersection and Panthapath-Mirpur Road intersection
7. Spot speed
Average speed of individual
group from Panthopath to
Russel-square(mph)
Group 1 Group 2 Group 3 Average
directional
speed (mph)
18.43 16.38 19.48 18.10
Average speed of individual
group from Russel-square to
Panthopath(mph)
Group 4 Group 5 Group 6 Average
directional
speed (mph)
20.33 20.00 16.92 19.08
8. Histograms of vehicles
July 22, 2012 Footer text here8
0
10
20
30
40
50
60
15 20 10 5 25 30 40 35
Frequency
Bin
( Panthopath to Russel-square )
0
10
20
30
40
Frequency
Bin
( Russel-square to Panthopath )
15. Relationship between Space Mean Speed andTime Mean Speed
Speed
Group
(Mph)
Mean Speed
of Group,V
(Mph)
No. of
vehicles in
group, f
f*V f/V f(V-Vs)²
0-5 2.50 0 0.00 0.00 0.00
5-10 7.50 4 30.00 0.53 146.89
10-15 12.50 39 487.50 3.12 43.82
15-20 17.50 14 245.00 0.80 217.33
20-25 22.50 6 135.00 0.27 479.54
25-30 27.50 2 55.00 0.07 388.65
30-35 32.50 0 0.00 0.00 0.00
Total 65 952.50 4.79 1276.23
July 22, 2012 Footer text here15
Panthopath To Russel Square Russel square to Panthopath
Speed
Group
(Mph)
Mean Speed
ofGroup,V
(Mph)
No. of
vehicles in
group, f
f*V f/V f(V-Vs)²
0-5 2.5 9 22.5 3.60 496.84
5-10 7.5 18 135 2.40 106.29
10-15 12.5 16 200 1.28 105.68
15-20 17.5 24 420 1.37 1375.32
20-25 22.5 0 0 0.00 0.00
25-30 27.5 0 0 0.00 0.00
30-35 32.5 0 0 0.00 0.00
35-40 37.5 2 75 0.05 1520.21
Total 69 852.5 8.70 3604.34
Time mean speed, Vt = ∑f*V / ∑f
= 952.50/65
= 14.65 mph
Space Mean Speed, Vs = ∑f/∑(f/V)
= 65/4.79
= 13.57 mph
Time mean speed, Vt = ∑f*V / ∑f
= 852.5/69
= 12.35 mph
Space Mean Speed, Vs = ∑f/∑(f/V)
=
69/8.70
So,Vs < Vt
16. The Wardrop Relationship Between
Time Mean Speed AndThe Space Mean Speed
July 22, 2012 Footer text here16
#Time mean speed,Vt = ∑f*V / ∑f
= 852.5/69
= 12.35 mph
# Space Mean Speed,Vs = ∑f/∑(f/V)
= 69/8.70
= 7.93 mph
#Variance, Sd² = ∑f(V-Vs)²/(∑f-1)
= 3604.34/ 68
= 53 mph
#Vs + Sd²/Vs = 7.93 + 53/7.93
= 14.61 > (Vt =12.35 )
Russel-square- Panthopath Direction
#Time mean speed,Vt = ∑f*V / ∑f
= 952.50/65
= 14.65 mph
# Space Mean Speed,Vs = ∑f/∑(f/V)
= 65/4.79
= 13.57 mph
#Variance, Sd² = ∑f(V-Vs)²/(∑f-1)
= 1276.23/ 64
= 19.94mph
#Vs + Sd²/Vs = 13.57 + 19.94/13.57
= 15.04 >(Vt =14.65 )
Panthopath- Russel-square Direction
The Wardrop Relationship (Vs + Sd²/Vs > Vt ) Between Time Mean Speed
And The Space Mean Speed Which Has Been Found Right.
17. Delay Study
Panthopath- Russell Square
Car 3- wheeler Bus Motorcycle
Free flow Speed(mph) 20.00 15.00 18.00 25.00
Average Speed(mph) 15.51 12.21 12.53 16.49
Delay from Free Flow Speed(mph) 4.49 2.79 5.47 8.51
Delay (hr/km) 0.14 0.22 0.11 0.07
Russell Square- Panthopath
Car 3- wheeler Bus Motorcycle
Free flow Speed(mph) 20.00 15.00 18.00 25.00
Average Speed(mph) 11.78 10.71 11.63 13.05
Delay from Free Flow Speed(mph) 8.22 4.29 6.37 11.95
Delay (hr/km) 0.08 0.14 0.10 0.05
July 22, 2012 Footer text here17
18. Value ofTravelTime (VOT) andVehicle Operating Cost (VOC)
VehicleType Bus Car 3- wheeler Motorcycle
Fin Eco Fin Eco Fin Eco Fin Eco
1 hour delay cost (assuming
quarter liter Diesel fuel + 1/15
liter of lubricant consumed)
395.92 311.48 162.98 138.35 155.67 128.53 154.57 122.43
1 hour delay cost (assuming
quarter liter Petrol fuel + 1/15
liter of lubricant consumed)
393.47 302.48 183.48 149.65 162.17 137.53 162.19 129.53
July 22, 2012 Footer text here18
HourlyVOC for 2012/13
Item Cost Unit Bus Car 3- wheeler Motor Cycle
Unit Costs Fin Econ Fin Econ Fin Econ Fin Econ
Purchase cost of vehicle Tk'000 per vehicle 4456 3815 2292 1399 327 195 137 195
Cost of new tire Tk per tire 25375 17780 4163 2932 1863 1309 1181 1309
Maintenance labor cost Tk per hour 92 86 82 66 82 66 82 66
Overhead cost Tk '000 per annum 1898 1468 48 39 19 23 19 23
Crew cost Tk per hour 50 40 33 28 26 22 26 22
Fuel cost Diesel Tk per liter 61 58 65 43 46 38 46 38
Fuel cost petrol Tk per liter 85 72 76 62 76 62 76 62
Lubricant cost Tk per liter 270 198 230 184 230 184.00 230 184
Estimated factor forVOC calculation 2012/13
19. Value ofTravelTime (VOT) andVehicle Operating Cost (VOC)
VehicleType Bus Car 3- wheeler Motorcycle
Fin Eco Fin Eco Fin Eco Fin Eco
Diesel millionTk. 2.4 1.9 1.0 0.8 1.5 1.2 0.5 0.4
Petrol millionTk. 2.4 1.8 1.1 0.9 1.6 1.3 0.5 0.4
July 22, 2012 Footer text here19
VOC calculation table
Vehicle Bus Car 3- wheeler Motorcycle
Average Occupancy 40 4 4 1.1
VOT (Tk/passenger/hr) 40.7 78.8 33 58.4
Total yearly delay (hr) 642 1051 642.5 350.5
TotalVOT (millionTk.) 1.1 0.33 0.08 0.02
TravelTime Cost of Passengers by Category ofVehicle
20. Speed flow curve
Group
No.
Flow
(PCU/hr)
Speed
(mile/hr)
Capacity
(PCU/hr)
V/C
ratio
1 905 16.21
4587
0.19729
7
2 917 12.39
0.19991
3
3 972 16.09
0.21190
3
July 22, 2012 Footer text here20
PanthapathTo Russell Square (EToW)
0
5
10
15
20
900 920 940 960 980
Panthapath to russell square
Speed
(mile/hr)
Group
No.
Flow
(PCU/hr)
Speed
(mile/hr)
Capacity
(PCU/hr)
V/C ratio
4 778 11.76
3807
0.20436
0.2440245 929 13.99
0.2487526 947 11.6
RUSSELL SQUARETO PANTHAPATH (W to E)
0
5
10
15
0 200 400 600 800 1000
Russell square to panthapath
21. Recommendations
Automatic data
collection process
must be used for
more realistic
information.
Manual count
method must be
done by trained
enumerators.
Huge amount of
data should be
collected for data
combination
between different
group.
The result of the
study suggests that
traffic control
system have to
improve for smooth
flow.
Volume study must
be done before
speed study.
Speed & delay
studies must be
done carefully for
cost & benefit
calculation of a
project.
July 22, 2012 Footer text here21
22. Scope for Further Study
July 22, 2012 Footer text here22
This speed study was
completed by un-skilled
enumerators that leads to
some error in data collection
process.
Data collected by manual
method is unreliable and
irreversible. For more
representatives and reliable
data automatic data
collection method should be
followed.
Data were collected for
short-period (30 minute)
can’t implies flow
characteristics of the road. If
3days continuous data were
collected, that would be
much more representative
and realistic.