Traffic and Transportation Air Quality Modeling

University of New Hampshire (UNH) and Town of Durham, New Hampshire

Through a joint planning effort, the University of New Hampshire (UNH) and the Town of Durham, New Hampshire, commissioned the creation of a detailed micro-simulation model to be used by either party in planning and analysis of future building projects, local developments, and infrastructure improvements.

In the first phase of this project, RSG developed a detailed micro-simulation model of traffic and land use encompassing the UNH campus and Town of Durham. The model, which includes the entire road network in Durham, includes over 200 intersections and consists of 68 zones representing discrete land uses within town. The model was first developed in 2008 and has since been re-calibrated to 2013 conditions with intersection turning movement count data from 64 intersections.

Since 2008, RSG has used this model to test benefits associated with major roadway projects on campus and in town, and has pioneered methods for integrating traffic micro-simulation with air quality emissions models, including CMEM (Comprehensive Modal Emissions Model) developed by UC Riverside and MOVES (Motor Vehicle Emissions Simulator) developed by the EPA. In addition to publishing several recent TRB papers on this topic, RSG has applied these capabilities to real-world projects and assisted our clients in securing CMAQ funding for a new downtown roundabout by using the model to illustrate future air-quality benefits associated with this improvement.

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