Illustration 1:   Émission de NOx en grammes des poids lourds diesel en Île de France–à 7h00 pour une journée type - par maille




Megan Lebacque
 

CEREA
6-8 avenue Blaise Pascal 
Champs sur Marne 
F77455 Marne la Vallée cedex 2 
FRANCE 
 

Tel :  00 33 (0) 1 64 15 21 54
Fax:  00 33 (0) 1 64 15 21 70

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Megan.lebacque@cerea.enpc.fr





I am a researcher at LVMT, A Research Laboratory addressing the City and Transportation created in 2003, the laboratory “Ville, Mobilité, Transports » (LVMT, or “City, Mobility, Transport”) is the product of a partnership between an engineering school - École des Ponts Paristech, a research institute -INRETS - the National Research Institute on Transport and Transportation Security, and a university - UMLV- the University of Marne-la-Vallée. Concurrently, I am a researcher at CEREA, a Joint Laboratory École des Ponts Paristech - Research & Development division of Électricité de France.

My research field is Transportation modeling and Air Quality Modeling, (specifically, mobile source pollutant emissions ). I work on a joint project between LVMT and CEREA. I have developed a new dynamic emission processing model called REALITY.

REALITY stands for Road Emission Activity-Link based InvenTorY.

REALITY is a model that calculates emission of pollutants produced by traffic on a road network. The objective in the design of REALITY is to capture variations in pollutant emissions on any given network. Two different levels of pollutant emissions are calculated: link level, and grid cell level. These emissions are functions of link's volume and speed at various times of a day. Pollutants considered are: CO, (carbon monoxide), VOC (volatile organic compounds (CH4, methane, NMVOC, non-methane), NOx (nitrogen oxides), PM (particulate matter), SOx ( SO2, sulfur dioxide), and CO2 (carbon dioxide or green house gas).

REALITY produces a more realistic pollutant emission levels that vary in time and represent the actual level of activity on a network.

A new model for calculating cold start emissions:

DYNABURBS stands for Dynamic Assignment for Suburbs. This is a dynamic assignment model that includes trip chaining as a function of the number of cars parked ( garages and side street parking included) on urban streets.

A new model for calculating micro-environment pollutant concentration :

APOLARIS stands for Atmospheric Pollution Activity- Road Initiated Source. The objective of this model is to calculate pollutant concentration produced by traffic on the links of a network. The model proposes a special application of the Chemistry Transport Model and special hypothesis on diffusion, turbulence, surface conditions, and meterological effects.


Publications

  • Lebacque, M., REALITY – Road Emission Activity-Link based InvenTorY , Technical report, (January 15, 2010).

Proceedings

  • Lebacque, M., REALITY : Road Emission Activity-Link based InvenTorY :A dynamic on-road pollutant emission model, Presented at the 9th Annual CMAS Conference, Chapel Hill, NC, October 11-13, 2010, and is posted on the website of the conference.

  • V. Aguiléra, M. Lebacque, Dynamic Estimation of Traffic Emissions in Metropolitan Road Networks, WCTR (World Conference on Transport Research Society), July 11-15, 2010, Lisboa, Portugal.

  • Lebacque, M., REALITY Road Emission Activity-Link based InvenTorY: un modèle de calcul dynamique d'émissions de polluants produites par le trafic. Presented at the Modélisation des réseaux de transport conference organized by GRETIA / INRETS and LVMT / ENPC, June 10th, 2010. The paper version will be published in the preceedings of the conference.

Articles and other publications


Last Update: 2 November 2010