Presentation by Dr James Tate at Scottish Transport Emissions Partnership Annual Conference 2016
www.its.leeds.ac.uk/people/j.tate
https://stepscotland.com/2016/08/18/919/
Presentation by Dr James Tate at Institute of Air Quality Management (IAQM) Dispersion Modellers User Group December 2014.
www.its.leeds.ac.uk/people/j.tate
http://iaqm.co.uk/event/dmug-2014/
Comparative study of emission pollutants between BIM and VSP methods.AdithCR1
In order to determine the present condition at the junction various types of surveys such as road inventory survey, turning movement survey, spot speed analysis were conducted at existing intersection of the road and necessary data were collected for completing the project. The method used for calculating the emission rates of vehicle is VSP which is done for vehicle (passenger cars) manually. Modelling of roundabout is done which is based on the BIM system (VISSIM). Here initially the existing condition of the intersection is analysed for peak hour traffic flow, so based on the traffic simulation carried out in the software, emission rates are calculated and compared with the manually calculated emission rates. So the basic idea of this case study is to check the emission rates at the junction especially during peak hours and to check if the rate exists within n the standard emission rates so that the surrounding area isnt affected due to pollution caused by the moving vehicles.
Airport capacity in London (report by the London Assembly)London Assembly
The Transport Committee’s report, Airport Capacity in London, suggests existing airport capacity in London, including at Heathrow and Gatwick airports, could be used more effectively.
Presentation by Dr James Tate at Scottish Transport Emissions Partnership Annual Conference 2016
www.its.leeds.ac.uk/people/j.tate
https://stepscotland.com/2016/08/18/919/
Presentation by Dr James Tate at Institute of Air Quality Management (IAQM) Dispersion Modellers User Group December 2014.
www.its.leeds.ac.uk/people/j.tate
http://iaqm.co.uk/event/dmug-2014/
Comparative study of emission pollutants between BIM and VSP methods.AdithCR1
In order to determine the present condition at the junction various types of surveys such as road inventory survey, turning movement survey, spot speed analysis were conducted at existing intersection of the road and necessary data were collected for completing the project. The method used for calculating the emission rates of vehicle is VSP which is done for vehicle (passenger cars) manually. Modelling of roundabout is done which is based on the BIM system (VISSIM). Here initially the existing condition of the intersection is analysed for peak hour traffic flow, so based on the traffic simulation carried out in the software, emission rates are calculated and compared with the manually calculated emission rates. So the basic idea of this case study is to check the emission rates at the junction especially during peak hours and to check if the rate exists within n the standard emission rates so that the surrounding area isnt affected due to pollution caused by the moving vehicles.
Airport capacity in London (report by the London Assembly)London Assembly
The Transport Committee’s report, Airport Capacity in London, suggests existing airport capacity in London, including at Heathrow and Gatwick airports, could be used more effectively.
Immersives driving simulation architecture to support gamified eco-driving in...Olivier Orfila
Eco-driving is about energy efficient use of vehicles. There are many approaches to improve eco-driving. Eco-driving driving style is hard to learn even with the help of driving assistance systems. This paper presents an immersive driving simulation training tool to support eco-driving training. We address the following questions: (1) How gamification concepts can improve eco-driving evaluation, training and adoption in simulated environments and (2) How to setup such elements in a 3D immersive driving simulator. We present an implementation of gamification concepts in a driving simulator architecture built upon pro-SiVIC software and a 3D Helmet Mounted Display. The gamification functions are then used to motivate drivers to be eco-friendly. We conclude with future work and open issues.
Safe and ecological speed profile planning algorithm for autonomous vehicles ...Olivier Orfila
This slides have been presented in the Fast Zero 2017 conference in Nara, Japan. They describe how a multiobjective optimization procedure base on simulated annealing has been used to generate a speed profile for an autonomous vehicle. This speed profile is safe and ecological (minimizing energy use).
Xi'an Chang'an invited conference: Transportation system complexity, optimal ...Olivier Orfila
This presentation has been done in Xi'an Chang'an University and is a slight improvement of the Chengdu one . It concerns the application of transportation complexity theory to optimal driving strategy.
Impact of the penetration rate of ecodriving on fuel consumption and traffic ...Olivier Orfila
Since many years, as a consequence of fossil fuels rarefaction and climate changes, ecology has become a major challenge of our society. In this field, many improvements could be realized on the transportation side and more precisely on passenger cars which are an important source of pollution. A quick and efficient solution to reduce fuel consumption and so, greenhouse gases emissions, is to adopt an ecological way of driving, called ecodriving.
However, is ecodriving really efficient in terms of mobility and environment at a global point of view? The benefits of ecodriving have often been studied for an isolated vehicle and rarely for a whole network. The aim of this work is to estimate the effects of ecodriving on traffic congestion and fuel consumption according to the percentage of ecodrivers in the population. This has been achieved using a class of ecodriven vehicles with a car-following model (Intelligent Driver Model) and with a transport simulation software (Aimsun). Results show that the effect of ecodriving on the traffic congestion and pollution is not linearly linked to the proportion of ecodrivers and this effect varies according to the driving conditions. In some cases, ecodriving is cons-productive and fuel consumption increases. Future works will concentrate on experimental validation, on modeling the effect of ecodriving on road safety and on improving the different models.
A presentation by Ibrahim Djama, commercial director, port of Djibouti, delivered during African Ports Evolution 2015 in Durban, South Africa.
More like this on www.transportworldafrica.co.za
DIGITALE COMMUNICATIE TUSSEN WAL EN SCHIP - Big Data Expo 2019webwinkelvakdag
International Car Operators (ICO) is wereldleider in voertuigtransport, opererend vanuit de haven van Zeebrugge. ICO verwerkt 2.6 miljoen voertuigen per jaar via een vloot van 3.000 schepen. Eén van de belangrijkste transportroutes van en naar het Verenigd Koninkrijk loopt via Zeebrugge, waar men zich dus nadrukkelijk voorbereid op BREXIT. Om de verwachte administratieve last het hoofd te bieden, is (digitale) communicatie cruciaal. Vertraging van de fysieke stroom heeft grote (economische) gevolgen. Vanuit deze gedachte is een nieuw initiatief ontstaan; RX/Seaport’s BREXIT Gateway. Alain Guillemyn (GM, CIO) vertelt hoe de grote hoeveelheid logistieke processen efficiënt verlopen door slim toepassen van digitale communicatie, zowel intern als met trading partners.
Gear Shifting Behavior Model for Ecodriving Simulations Based on Experimental...Olivier Orfila
Ecodriving is known as a way to quickly and efficiently reduce fuel consumption for the concerned ecodriven vehicle. However, the impact of ecodriving on a whole road network at a large scale is unknown. In order to perform studies in a micro traffic simulation software, a fuel consumption model coupled to a gear behavior model are required.
This study presents a gear shifting behavior model able to represent as well the variability of drivers as the difference between ecodriving and normal driving. This work, based on the evaluation of the real driver behaviors during 42 trips, has been partially validated with a result of 60% of time spend in the correct gear.
Future works will be concentrated on a detailed validation of this model and on its implementation with a fuel consumption model.
The growing number of offshore wind farms require more and more maritime hardware. European shipyards have the right set of capabiities to ensure that the logistic chains are fully supplied with efficient vessels, from foundation preparation till the first watt is produced.
Presentación de TUREBE en la Mesa Redonda:
"Iniciativas en marcha, propuestas de turismo sostenible y responsable"
Organizada por Rutas Pangea, Koan Consulting y el Centro Español de Turismo Responsable.
Lewis & Crroll - Nestle España - Caso de éxito en Content MarketingLewis & Carroll
Con esta acción iniciamos (Diciembre 2013) la presencia de La Lechera España en Facebook.
Una Estrategia orientada al usuario y basada en la participación. Desde entonces, la Comunidad de La Lechera España sigue creciendo (https://www.facebook.com/LaLecheraES) y el Engagement y la participación también.
Un caso de éxito del que estamos muy orgullosos!
Más de 20 años ofreciendo soluciones:
CAI Sistemas Informáticos es una factoría de software propio, que desarrolla aplicaciones de gestión empresarial. Está formada por un equipo multidisciplinar de profesionales, altamente cualificado y en permanente proceso de investigación y formación, con el objetivo de ofrecer soluciones fiables, seguras y adaptadas a las necesidades de cada cliente.Nuestro objetivo es ofrecer la máxima calidad en el servicio. Su principal garantía es la satisfacción de nuestros clientes.
Somos una empresa TIC: ofrecemos Tecnología, Innovación y Confianza.
BACRUFLEX (PERU )
Siguenos en Facebook:
https://www.facebook.com/manguerasyvalvulas
Siguenos en Google My Business
https://g.page/BACRUFLEX?we
https://www.facebook.com/mangueras.hidraulicasperu
Visitenos en youtube
https://www.youtube.com/watch?v=I3IBTKmAHhk
https://www.youtube.com/watch?v=QwF3hNParF4
Contactenos al:
7747943 / 950511253
ventas@bacruflex.com
Wechat: Bacruflex-Peru
importaciones@bacruflex.com
Immersives driving simulation architecture to support gamified eco-driving in...Olivier Orfila
Eco-driving is about energy efficient use of vehicles. There are many approaches to improve eco-driving. Eco-driving driving style is hard to learn even with the help of driving assistance systems. This paper presents an immersive driving simulation training tool to support eco-driving training. We address the following questions: (1) How gamification concepts can improve eco-driving evaluation, training and adoption in simulated environments and (2) How to setup such elements in a 3D immersive driving simulator. We present an implementation of gamification concepts in a driving simulator architecture built upon pro-SiVIC software and a 3D Helmet Mounted Display. The gamification functions are then used to motivate drivers to be eco-friendly. We conclude with future work and open issues.
Safe and ecological speed profile planning algorithm for autonomous vehicles ...Olivier Orfila
This slides have been presented in the Fast Zero 2017 conference in Nara, Japan. They describe how a multiobjective optimization procedure base on simulated annealing has been used to generate a speed profile for an autonomous vehicle. This speed profile is safe and ecological (minimizing energy use).
Xi'an Chang'an invited conference: Transportation system complexity, optimal ...Olivier Orfila
This presentation has been done in Xi'an Chang'an University and is a slight improvement of the Chengdu one . It concerns the application of transportation complexity theory to optimal driving strategy.
Impact of the penetration rate of ecodriving on fuel consumption and traffic ...Olivier Orfila
Since many years, as a consequence of fossil fuels rarefaction and climate changes, ecology has become a major challenge of our society. In this field, many improvements could be realized on the transportation side and more precisely on passenger cars which are an important source of pollution. A quick and efficient solution to reduce fuel consumption and so, greenhouse gases emissions, is to adopt an ecological way of driving, called ecodriving.
However, is ecodriving really efficient in terms of mobility and environment at a global point of view? The benefits of ecodriving have often been studied for an isolated vehicle and rarely for a whole network. The aim of this work is to estimate the effects of ecodriving on traffic congestion and fuel consumption according to the percentage of ecodrivers in the population. This has been achieved using a class of ecodriven vehicles with a car-following model (Intelligent Driver Model) and with a transport simulation software (Aimsun). Results show that the effect of ecodriving on the traffic congestion and pollution is not linearly linked to the proportion of ecodrivers and this effect varies according to the driving conditions. In some cases, ecodriving is cons-productive and fuel consumption increases. Future works will concentrate on experimental validation, on modeling the effect of ecodriving on road safety and on improving the different models.
A presentation by Ibrahim Djama, commercial director, port of Djibouti, delivered during African Ports Evolution 2015 in Durban, South Africa.
More like this on www.transportworldafrica.co.za
DIGITALE COMMUNICATIE TUSSEN WAL EN SCHIP - Big Data Expo 2019webwinkelvakdag
International Car Operators (ICO) is wereldleider in voertuigtransport, opererend vanuit de haven van Zeebrugge. ICO verwerkt 2.6 miljoen voertuigen per jaar via een vloot van 3.000 schepen. Eén van de belangrijkste transportroutes van en naar het Verenigd Koninkrijk loopt via Zeebrugge, waar men zich dus nadrukkelijk voorbereid op BREXIT. Om de verwachte administratieve last het hoofd te bieden, is (digitale) communicatie cruciaal. Vertraging van de fysieke stroom heeft grote (economische) gevolgen. Vanuit deze gedachte is een nieuw initiatief ontstaan; RX/Seaport’s BREXIT Gateway. Alain Guillemyn (GM, CIO) vertelt hoe de grote hoeveelheid logistieke processen efficiënt verlopen door slim toepassen van digitale communicatie, zowel intern als met trading partners.
Gear Shifting Behavior Model for Ecodriving Simulations Based on Experimental...Olivier Orfila
Ecodriving is known as a way to quickly and efficiently reduce fuel consumption for the concerned ecodriven vehicle. However, the impact of ecodriving on a whole road network at a large scale is unknown. In order to perform studies in a micro traffic simulation software, a fuel consumption model coupled to a gear behavior model are required.
This study presents a gear shifting behavior model able to represent as well the variability of drivers as the difference between ecodriving and normal driving. This work, based on the evaluation of the real driver behaviors during 42 trips, has been partially validated with a result of 60% of time spend in the correct gear.
Future works will be concentrated on a detailed validation of this model and on its implementation with a fuel consumption model.
The growing number of offshore wind farms require more and more maritime hardware. European shipyards have the right set of capabiities to ensure that the logistic chains are fully supplied with efficient vessels, from foundation preparation till the first watt is produced.
Presentación de TUREBE en la Mesa Redonda:
"Iniciativas en marcha, propuestas de turismo sostenible y responsable"
Organizada por Rutas Pangea, Koan Consulting y el Centro Español de Turismo Responsable.
Lewis & Crroll - Nestle España - Caso de éxito en Content MarketingLewis & Carroll
Con esta acción iniciamos (Diciembre 2013) la presencia de La Lechera España en Facebook.
Una Estrategia orientada al usuario y basada en la participación. Desde entonces, la Comunidad de La Lechera España sigue creciendo (https://www.facebook.com/LaLecheraES) y el Engagement y la participación también.
Un caso de éxito del que estamos muy orgullosos!
Más de 20 años ofreciendo soluciones:
CAI Sistemas Informáticos es una factoría de software propio, que desarrolla aplicaciones de gestión empresarial. Está formada por un equipo multidisciplinar de profesionales, altamente cualificado y en permanente proceso de investigación y formación, con el objetivo de ofrecer soluciones fiables, seguras y adaptadas a las necesidades de cada cliente.Nuestro objetivo es ofrecer la máxima calidad en el servicio. Su principal garantía es la satisfacción de nuestros clientes.
Somos una empresa TIC: ofrecemos Tecnología, Innovación y Confianza.
BACRUFLEX (PERU )
Siguenos en Facebook:
https://www.facebook.com/manguerasyvalvulas
Siguenos en Google My Business
https://g.page/BACRUFLEX?we
https://www.facebook.com/mangueras.hidraulicasperu
Visitenos en youtube
https://www.youtube.com/watch?v=I3IBTKmAHhk
https://www.youtube.com/watch?v=QwF3hNParF4
Contactenos al:
7747943 / 950511253
ventas@bacruflex.com
Wechat: Bacruflex-Peru
importaciones@bacruflex.com
Let’s be honest, today It’s getting progressively difficult for brands to stand out and to find and engage customers and employees on a long-term basis.
What people need are brands with an inspiring story that is so remarkable, authentic and lovable that people want to connect themselves to it!
So how do you turn your brand into an inspiring Lovebrand?
Our Playbook for Digital Crisis and Issue Management 3.0Ogilvy Consulting
We set out to answer these questions and ended up writing “Our Playbook for Digital Crisis Management 3.0.” Born out of our global experience preparing for and responding to brand and corporate crises, it’s now part of our global training program.
We wanted to understand how social media was fundamentally changing the way we approach crisis management. We wanted to marry established crisis practices with the most evolved thinking in social media marketing and social business practices. We also wanted to be highly practical – today’s experts need a suite of apps they can quickly access when a crisis threatens to break.
Routes to Clean Air 2016 - Dr Norbert Ligterink - TNOIES / IAQM
Talk title: NOx and NO2 Emissions of diesel vehicles.
Routes to Clean Air is a two-day conference from the IAQM where academics, professionals and policy makers share their experiences of improving traffic emissions.
This event highlights the importance of public communication and behavioural change surrounding road transport and air quality issues.
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.
Presentation by Dr James Tate, February 2015.
www.its.leeds.ac.uk/people/j.tate
www.ciht.org.uk/en/events/events-listing.cfm/the-challenge-of-improving-sheffields-air-quality
Routes to Clean Air 2016 - Jane Thomas, Emissions AnalyticsIES / IAQM
Talk title: Measuring and monitoring emissions of nitrogen oxides from passenger cars. a 1200 vehicle case study
Routes to Clean Air is a two-day conference from the IAQM where academics, professionals and policy makers share their experiences of improving traffic emissions.
This event highlights the importance of public communication and behavioural change surrounding road transport and air quality issues.
https://youtu.be/Hfq6J29BLnc
Presentation by Dr James Tate to IAQM Air Quality Conference October 2015.
http://iaqm.co.uk/event/routes-to-clean-air-air-quality-conference-2015
https://youtu.be/1WVelwAEg-c
www.its.leeds.ac.uk/people/j.tate
Telematics in haulage (Ray Engley) and Wrightbus Low Carbon Technologies (Ton...STEP_scotland
Joint presentation in which Ray Engley (Road Haulage Association) presents progressive gains in efficiency and air quality as a result of telematics and Tony Martin describes the changing technologies in the bus sector.
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
CO2 emissions of vehicles: a broad and persistent problemLeonardo ENERGY
The transport sector has not seen the same decline in greenhouse gas emissions as many other sectors. CO2 emissions from passenger cars and trucks form a persistent problem and policymakers struggle to find effective solutions to meet the goals.
First, there is this ongoing race to the bottom among declared CO2 values with a growing gap with the emissions in real-world use. Second, manufacturers are only responsible for the performance of their cars under idealized circumstances, as measured during vehicle emission tests. Third, the economic and life-style aspects of owning and driving heavy and expensive cars are forces in the opposite direction. And last, the European Union has only limited systems in place for the monitoring and verification of the CO2 emissions of vehicles.
In this presentation, Norbert Ligterink (PhD), senior research scientist at TNO, guides you to understanding the complexity behind this broad and persistent problem.
Similar to MESO + MICRO real driving emission models for AIMSUN (20)
www.nhtnetwork.org/cqc-efficiency-network/home
The CQC Efficiency Network is a collaborative venture between ITS researcher Dr Phill Wheat and leading
performance and benchmarking company measure2improve (m2wi). Dr Wheat has used funding from the EPSRC
Impact Acceleration Account (IAA) to refine the tools to support m2i in developing the fast growing network. The IAA is an institutional award funded by EPSRC to help speed up the contribution that engineering and physical science research make towards new innovation, successful businesses and
the economic returns that benefit UK plc.
Posters summarizing dissertation research projects - presented by MSc students at the Institute for Transport Studies (ITS), University of Leeds, April 2017. http://bit.ly/2re35Cs
www.its.leeds.ac.uk/courses/masters/dissertation
Cutting-edge transport research showcased to Secretary of State during the event to officially re- open the Institute building www.leeds.ac.uk/news/article/4011/cutting-edge_transport_research_showcased_to_secretary_of_state
DR STEPHEN HALL, PROFESSOR SIMON SHEPHERD, DR ZIA WADUD; UNIVERSITY OF LEEDS, IN COLLABORATION WITH FUTURE CITIES CATAPULT
Also see https://theconversation.com/five-reasons-why-you-might-be-driving-electric-sooner-than-you-think-71896
Presentation Fiona Crawford - winner of the Smeed prize for best student paper at the UTSG Conference 2017
www.its.leeds.ac.uk/people/f.crawford
www.utsg.net/web/index.php?page=annual-conference
Efforts to reduce the emissions from car travel have so far been hampered by a lack of specific information on car ownership and use. The Motoring and vehicle Ownership Trends in the UK (MOT) project seeks to address this by bringing together new sources of data to give a spatially and disaggregated diagnosis of car ownership and use in Great Britain and the associated energy demand and emissions.
Data from annual car M.O.T tests, made available by the Department for Transport, will be used as a platform upon which to develop and undertake a set of inter-linked modelling and analysis tasks using multiple sources of vehicle-specific and area-based data. Through this the project will develop the capability to understand spatial and temporal differences in car ownership and use, the determinants of those differences, and how levels may change over time and in response to various policy measures. The relationship between fuel use and emissions, and the demographic, economic, infrastructural and socio-cultural factors influencing these will also be tested.
Consequently, the MOT project has the potential to transform the way in which energy and emissions related to car use are quantified, understood and monitored to help refine future research and policy agendas and to inform transport and energy infrastructure planning.
www.its.leeds.ac.uk/research/featured-projects/mot
The University's Annual Review covering the 2015-16 academic year. This new publication gives an overview of some of the most important initiatives and activities that the University has undertaken recently and a sense of the scale of the ambition for the future.
www.its.leeds.ac.uk/people/c.calastri
Social networks, i.e. the circles of people we are socially connected to, have been recognised to play a role in shaping our travel and activity behaviour. This not only has to do with socialisation being the purpose of travel, but also with enabling mobility and other activities through the so-called social capital. Another theme in the literature connecting social environment and travel behaviour is social influence, i.e. the investigation of how travel behaviour can be affected by observation or comparison with other people. Research about the impact of social influence on travel choices is still at its infancy. In this talk, I will give an overview of how choice modelling can be used to investigate the relationships between social networks, travel and activities. I will touch upon work that I have done so far, in particular I will describe my applications of the Multiple Discrete-Continuous Extreme Value (MDCEV) model to frequency of social interactions as well as to allocation of time to different activities, taking the social dimension into account. In these studies, I make use of social network and travel data collected in places as diverse as Switzerland and Chile. I will also discuss ongoing work making use of longitudinal life-course data to model the impact of family of origin and the “mobility environment” people grew up in on travel decision of adults. Finally, I will outline future plans about modelling behavioural changes due to social influence using the smartphone app travel data that are being collected in Leeds within the “Choices and consumption: modelling long and short term decisions in a changing world” (“DECISIONS”) project.
Shigeki Oxawa is Associate Professor at the Department of Integrated Informatics, Daido University and part-time Lecturer in Transport Economics at Hosei University. He is a transport economist with a strong interest in transport policy. He is currently an academic visitor at Leeds University (April 2016-March 2017) working in the area of intermodal transport (with a focus on rail freight transport) and in turn track access charges.
Abstract: In the national railway revolution in Japan, the passenger division was divided into 6 companies by regions. They operate trains and own/manage the rail track (vertical integration system). On the other hand, vertical separation was introduced into freight companies, therefore, freight companies have to access rail track owned/managed by passenger companies. The Japanese regulator regards track access transactions between passenger companies and freight companies as private business.
In the vertical separation system, freight companies cannot get access to the slots required and efficient allocation of rail track cannot be achieved. The vertical separation is a very significant issue in railway policy and freight transport policy in Japan. In the presentation, causes and possible solutions to the issue will be shown.
Shigeki is Associate Professor at the Department of Integrated Informatics, Daido University and part-time Lecturer in Transport Economics at Hosei University. He is a transport economist with a strong interest in transport policy. He is currently an academic visitor at Leeds University (April 2016-March 2017) working in the area of intermodal transport (with a focus on rail freight transport) and in turn track access charges. He has 20 years of experience in research and teaching.
Presentation from NORTHMOST - a new biannual series of meetings on the topic of mathematical modelling in transport.
Hosted at its.leeds.ac.uk, NORTHMOST 01 focussed on academic research, to encourage networking and collaboration between academics interested in the methodological development of mathematical modelling applied to transport.
The focus of the meetings will alternate; NORTHMOST 02 - planned for Spring 2017 - will be led by practitioners who are modelling experts. Practitioners will give presentations, with academic researchers in the audience. In addition to giving a forum for expert practitioners to meet and share best practice, a key aim of the series is to close the gap between research and practice, establishing a feedback loop to communicate the needs of practitioners to those working in university research.
Presentation from NORTHMOST - a new biannual series of meetings on the topic of mathematical modelling in transport.
Hosted at its.leeds.ac.uk, NORTHMOST 01 focussed on academic research, to encourage networking and collaboration between academics interested in the methodological development of mathematical modelling applied to transport.
The focus of the meetings will alternate; NORTHMOST 02 - planned for Spring 2017 - will be led by practitioners who are modelling experts. Practitioners will give presentations, with academic researchers in the audience. In addition to giving a forum for expert practitioners to meet and share best practice, a key aim of the series is to close the gap between research and practice, establishing a feedback loop to communicate the needs of practitioners to those working in university research.
Presentation from NORTHMOST - a new biannual series of meetings on the topic of mathematical modelling in transport.
Hosted at its.leeds.ac.uk, NORTHMOST 01 focussed on academic research, to encourage networking and collaboration between academics interested in the methodological development of mathematical modelling applied to transport.
The focus of the meetings will alternate; NORTHMOST 02 - planned for Spring 2017 - will be led by practitioners who are modelling experts. Practitioners will give presentations, with academic researchers in the audience. In addition to giving a forum for expert practitioners to meet and share best practice, a key aim of the series is to close the gap between research and practice, establishing a feedback loop to communicate the needs of practitioners to those working in university research.
Presentation from NORTHMOST - a new biannual series of meetings on the topic of mathematical modelling in transport.
Hosted at its.leeds.ac.uk, NORTHMOST 01 focussed on academic research, to encourage networking and collaboration between academics interested in the methodological development of mathematical modelling applied to transport.
The focus of the meetings will alternate; NORTHMOST 02 - planned for Spring 2017 - will be led by practitioners who are modelling experts. Practitioners will give presentations, with academic researchers in the audience. In addition to giving a forum for expert practitioners to meet and share best practice, a key aim of the series is to close the gap between research and practice, establishing a feedback loop to communicate the needs of practitioners to those working in university research.
Presentation from NORTHMOST - a new biannual series of meetings on the topic of mathematical modelling in transport.
Hosted at its.leeds.ac.uk, NORTHMOST 01 focussed on academic research, to encourage networking and collaboration between academics interested in the methodological development of mathematical modelling applied to transport.
The focus of the meetings will alternate; NORTHMOST 02 - planned for Spring 2017 - will be led by practitioners who are modelling experts. Practitioners will give presentations, with academic researchers in the audience. In addition to giving a forum for expert practitioners to meet and share best practice, a key aim of the series is to close the gap between research and practice, establishing a feedback loop to communicate the needs of practitioners to those working in university research.
Presentation from NORTHMOST - a new biannual series of meetings on the topic of mathematical modelling in transport.
Hosted at its.leeds.ac.uk, NORTHMOST 01 focussed on academic research, to encourage networking and collaboration between academics interested in the methodological development of mathematical modelling applied to transport.
The focus of the meetings will alternate; NORTHMOST 02 - planned for Spring 2017 - will be led by practitioners who are modelling experts. Practitioners will give presentations, with academic researchers in the audience. In addition to giving a forum for expert practitioners to meet and share best practice, a key aim of the series is to close the gap between research and practice, establishing a feedback loop to communicate the needs of practitioners to those working in university research.
More from Institute for Transport Studies (ITS) (20)
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Comprehensive program for Agricultural Finance, the Automotive Sector, and Empowerment . We will define the full scope and provide a detailed two-week plan for identifying strategic partners in each area within Limpopo, including target areas.:
1. Agricultural : Supporting Primary and Secondary Agriculture
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• Target Areas: Polokwane, Tzaneen, Thohoyandou, Makhado, and Giyani.
2. Automotive Sector: Partnerships with Mechanics and Panel Beater Shops
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• Target Areas: Polokwane, Lephalale, Mokopane, Phalaborwa, and Bela-Bela.
3. Empowerment : Focusing on Women Empowerment
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MESO + MICRO real driving emission models for AIMSUN
1. 14th Annual Aimsun Users’ Meeting
MESO and MICRO
Real Driving Emission models for AIMSUN
Dr James Tate
Institute for Transport Studies,
University of Leeds, UK
Email: j.e.tate@its.leeds.ac.uk
Twitter: drjamestate
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012345
Speed (km.h
1
)
NOX(grams.km
1
)
2. 14th Annual Aimsun Users’ Meeting
#DIESELGATE
NOX common marques & models
October 2015
Euro Standard
NOX(grams.km
1
)
0.5
1.0
1.5
2.0
2.5
AUDI
Euro 3 Euro 4 Euro 5
BMW FORD
Euro 3 Euro 4 Euro 5
LANDROVER MERCEDES
Euro 3 Euro 4 Euro 5
PEUGEOT SKODA
Euro 3 Euro 4 Euro 5
VAUXHALL VOLKSWAGEN
Euro 3 Euro 4 Euro 5
0.5
1.0
1.5
2.0
2.5
VOLVO
4. 14th Annual Aimsun Users’ Meeting
EMISSION MODELLING WITH AIMSUN
▶ Calibrated & Validated Network
▶ Set ‘realistic’ UK vehicle dynamics
▶ Harvest ALL trajectories
▶ Manipulate into emission model format (1Hz)
▶ Instantaneous Emission Modelling e.g. PHEM
BEST PRACTICE
5. 14th Annual Aimsun Users’ Meeting
CHALLENGES
• AVERAGE SPEED (MESO) EMISSION MODELS LIMITATIONS
– Most commonly applied emission model e.g. COPERT, HBEFA, EFT (UK)
– Under-predict emissions at low-speeds
– As ‘average’ uncertainties increase for shorter links
• EMISSION MODELS IN TRAFFIC SIMUATION SOFTWARE OFTEN DATED
• EXTERNAL INSTANTANEOUS EMISSION MODELS (IEM) CUMBERSOME
SOLUTIONS
• NEW TYPE OF AVERAGE SPEED EMISSION MODEL FOR THE EU FLEET
• NEW SIMPLE (FAST) IEM IMPLEMENTED WITHIN AIMSUN (API)
– 1hz time step
– Limited range of vehicle types & categories e.g. Euro 5 diésel car, LGV, HGV
6. 14th Annual Aimsun Users’ Meeting
UNDER-PINNING DATA
Taking the road into the Laboratory
The London Drive Cycle & Emission Testing (TfL)
Time (seconds)
Speed(km/h)
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20
40
60
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100
120
motorway
0
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60
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suburban
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urban
https://www.london.gov.uk/sites/default/files/In-
service%20emissions%20performance%20of%20Euro%206VI%20vehicles%20WEBSITE%20COPY.pdf
7. 14th Annual Aimsun Users’ Meeting
TfL EURO 6 / VI LABORATORY TESTING
12 PASSENGER CARS: tested over the entire LDC (140 kms)
▶ Powertrains | petrol (2), diesel (9) and petrol-HEV (1);
▶ Exhaust after-treatments | 3 way Cat, LNT and SCR;
▶ Market segments | Compact, Supermini, Small family, Family/MPV, SUV/4x4,
Prestige/sports and Hybrid; and
▶ Marques | BMW, Fiat, Lexus, Mercedes, Peugeot, Volvo and Volkswagen.
3 HEAVY-GOODS VEHICLES: tested over the suburban sub-cycles only
▶ Rigid HGV N2 7500kg
▶ Rigid HGV N3 18000kg
▶ Artic HGV N3 40000kg
▶ LADEN and UN-LADEN
7
1 Millbrook Vehicle Emission testing laboratories that meet the
requirements of Directive 2007/46 EC Article 41, Section 3
and have been designated as a Category A Technical Service
for Individual Vehicle Approvals (IVA).
8. 14th Annual Aimsun Users’ Meeting
LIMITATIONS
Average speed Emission Models
▶ Analysis of Laboratory Testing data
▶ Uncertainties greater on short links
9. 14th Annual Aimsun Users’ Meeting
TfL EURO 6 PASSENGER CAR RESULTS
100
120
140
160
180
0.0
0.2
0.4
0.6
0.8
1.0
1.2
Average CO2 (as % of type-approval [g/km])
AverageNOX[g/km]
Euro 5b/b+ diesel limit
Euro 6b/c diesel limit
Petrol-Hybrid
CompactPrestige/sports
Small family
Small family
Family/MPV
Family/MPV
Small familySUV/4x4
Supermini
Prestige/sports
Family/MPV
Moody, A., Tate, J. 2016. In service CO2 and NOX emissions of Euro 6/VI cars, light- and heavy-duty goods vehicles in real London driving:
Taking the road into the Laboratory. The 21st International Transport and Air Pollution (TAP) Conference, Lyon, France, May 24-26, 2016.
10. 14th Annual Aimsun Users’ Meeting
* Zallinger, M., Tate, J., and Hausberger, S. 2008. An instantaneous emission model for the passenger car fleet.
Transport and Air Pollution conference, Graz 2008
0 100 200 300 400 500
020406080
Speed(km.h1
)
0 100 200 300 400 500
01234567
CO2(g.sec
1
)
0 100 200 300 400 500
0.000.020.040.06
Time (seconds)
NOX(g.sec
1
)
Modelled_CO2
Observed_CO2
0
2
4
6
8
0 2 4 6 8
Counts
1
1
2
3
4
6
8
11
16
22
31
43
61
86
121
171
241
UNDER-PINNING MODEL
Instantaneous Emission Model PHEM*
Passenger car and Heavy-duty Emission Model
Verification & Validation
11. 14th Annual Aimsun Users’ Meeting
NEW TYPE OF AVERAGE SPEED
EMISSION MODEL
• Basis ‘MICRO-trips’: Stationary Speed > 5 km.h-1 Stationary
• Regression relationships (in ‘R’) fitted to each ‘MICRO-trip’
average-speed & Emission Rate
9000 9200 9400 9600 9800 10000
020406080
Time (seconds)
Speed(km.h
1
)
12. 14th Annual Aimsun Users’ Meeting
NEW TYPE OF AVERAGE SPEED
EMISSION MODEL
• Example Euro 5 diesel car | 401 London Drive Cycle ‘Micro-trips’
CO2 NOX
0 20 40 60 80
012345
Speed (km.h
1
)
NOX(grams.km
1
)
0 20 40 60 80
050010001500
Speed (km.h
1
)
CO2(grams.km
1
)
14. 14th Annual Aimsun Users’ Meeting
NEW TYPE OF AVERAGE SPEED
EMISSION MODEL (EM)
Coloured line : TfL EM
Grey : COPERT
Dotted : Standard
15. 14th Annual Aimsun Users’ Meeting
NEW TYPE OF AVERAGE
SPEED EMISSION MODEL
London Real Driving Trajectory data
i.e. configured for local driving conditions FOR EACH vehicle type
16. 14th Annual Aimsun Users’ Meeting
The ‘London Taxi’ (LTI)
Also: Van, Truck, Bus, Coach
17. 14th Annual Aimsun Users’ Meeting
NEW TYPE OF AVERAGE SPEED
EMISSION MODEL
• Process
18. 14th Annual Aimsun Users’ Meeting
WORK IN PROGRESS
STEP 1. Emission Functions being applied to London fleet + traffic movement data
▶ Observed and Modelled link flows & speeds
▶ Hourly resolution
STEP 2. Input for London air pollution dispersión simulations (Autumn 2016)
EXPECTED OUTCOMES
• Higher emissions predicted across Central London, accounting for:
▶ Traffic congestion especially in peak periods
▶ Fleet mix (high proportion of Taxis, Buses and Trucks)
• Closer agreement between MEASURED and MODELLED levels of air pollution
NEW AVERAGE SPEED LONDON EMISSION MODEL
19. 14th Annual Aimsun Users’ Meeting
• NEW generation of IEMs derived from PEMS (Portable Emission Measurement
Systems) and Remote Sensing data i.e. semi-empirical
• Formulation Vehicle Specific Power (VSP)
– Accounts for power demands: Acceleration (a), Road gradient (⍬), Rolling resistance and
Aerodynamic drag (from speed v). Units kW.ton-1
• E.g. Basis of the US ‘MOVES’ IEM
• European Model* developed from TNO’s growing database of PEMS testing
data (now 1,000s passenger cars)
• Currently implemented in AIMSUN API (FP7 ecoDriver Project)
Fast, Simple Instantaneous Emission Models
* Ligterink, N., Tate, J. Heijne, V. 2016. Vehicle emission model for traffic simulations. The 21st International Transport and Air Pollution (TAP)
Conference, Lyon, France, May 24-26, 2016.
20. 14th Annual Aimsun Users’ Meeting
Fast, Simple Instantaneous Emission Model
e.g. Verification of Euro 5 diesel car OBSERVED vs. MODELLED (blue CO2
& red NOX) with TfL London Drive Cycle data (extract)
Ligterink, N., Tate, J. Heijne, V. 1 2016. Vehicle emission model for traffic simulations. The 21st International Transport and Air Pollution (TAP)
Conference, Lyon, France, May 24-26, 2016.
21. 14th Annual Aimsun Users’ Meeting
Fast, Simple Instantaneous Emission Models
e.g. Verification of Euro 5 diesel truck (18t Rigid HGV) OBSERVED vs. MODELLED
(blue CO2 & red NOX) with TfL London Drive Cycle data (extract)
Ligterink, N., Tate, J. Heijne, V. 1 2016. Vehicle emission model for traffic simulations. The 21st International Transport and Air Pollution (TAP)
Conference, Lyon, France, May 24-26, 2016.
22. 14th Annual Aimsun Users’ Meeting
SUMMARY
• New MESO emission model (Average Speed)
+ Reliable predictions for short links
+ Reliable predictions for low driving speeds
+ Simple, consistent function form
+ Whole European fleet old & new, petrol & diésel
+ Up-to-date (includes the very latest Euro 6c diésel cars)
• New MICRO (instantaneous) emission model
+ Reliable predictions for Euro 5 / V vehicles
+ Expect up-dates for Euro 6 / VI
+ Fast computation
+ Evaluation of traffic management policies (relative change)
23. 14th Annual Aimsun Users’ Meeting
MESO and MICRO
Real Driving Emission models for AIMSUN
Dr James Tate
Institute for Transport Studies,
University of Leeds, UK
Email: j.e.tate@its.leeds.ac.uk
Twitter: drjamestate
0 20 40 60 80
012345
Speed (km.h
1
)
NOX(grams.km
1
)