Methodology and Guidelines for Regulating Traffic Flow Under Air Quality Constraints in Metropolitan Areas
Record Type: UTC
This project is developing a methodology to couple a new pollutant dispersion model with a traffic assignment process to contain air pollution while maximizing mobility. The overall objective of the air quality modeling part of the project is to develop a model to predict the air quality at receptor sites in metropolitan areas using traffic data from a coupled traffic model and real time meteorological data. Most of the air dispersion models in use do not have a full description of the physical and chemical processes to describe the formation and transformation of pollutants in the metropolitan areas relating to traffic flow and thus cannot provide complete information that is necessary in traffic planning and regulating. The reactive dispersion air quality model developed in this project will include a state-of-the-art gas chemistry mechanism (Statewide Air Pollution Research Center, or SAPRC, model) to predict the ozone, NOx, CO, benzene, acetaldehyde, formaldehyde. 1,3-butadine concentrations, and a complete particulate matter module with thermal dynamics to predict the concentrations of primary and secondary particulate pollutants including diesel particulate matter. With the developed air quality model, traffic assignment process can be conducted taking air quality into account. The air quality can be considered as a form of constraint that limits the pollutants under certain acceptable levels in parts of the transportation network. This consideration will be an added constraint in addition to the roadway segment capacity constraint in the assignment process. The air quality can also be considered as an additional objective function while assigning traffic flow in the metropolitan transportation network.
Start date: 2008/1/1
End date: 2009/12/31
Status: Completed
Contract/Grant Number: DTRT06-G-0044
Secondary Number: 00026
Total Dollars: 80000
Source Organization: University Transportation Center for Mobility
Date Added: 03/04/2008
Index Terms: Air quality, Air quality management, Metropolitan areas, Particulates, Traffic assignment, Traffic flow, Air quality models, Research projects,
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University Transportation Center for Mobility
http://utcm.tamu.edu
Texas Transportation Institute
Texas A&M University System
3135 TAMU
College Station, TX 77843-3135
USA
Phone: (979) 845-2538
Fax: (979) 845-9761
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Tooley, Melissa S
Phone: (979) 845-8545
Fax: (979) 845-9761
Email: m-tooley@tamu.edu
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Texas A&M University, College Station
http://civil.tamu.edu
Zachry Department of Civil Engineering
3136 TAMU
College Station, TX 77843-3136
USA
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Zhang, Yunlong
Phone: (979) 845-9902
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