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ATLANTA COMMUTE VEHICLE SOAK AND START DISTRIBUTIONS AND ENGINE STARTS PER DAY: IMPACT ON MOBILE SOURCE EMISSION RATES
Citation:
GUENSLER, R., S. YOON, H. LI, AND V. ELANGO. ATLANTA COMMUTE VEHICLE SOAK AND START DISTRIBUTIONS AND ENGINE STARTS PER DAY: IMPACT ON MOBILE SOURCE EMISSION RATES. U.S. Environmental Protection Agency, Washington, DC, EPA/600/R-07/075, 2007.
Impact/Purpose:
Published Report
Description:
Georgia Institute of Technology School of Civil and Environmental Engineering researchers analyzed the 2004 vehicle activity data obtained from vehicles in the Atlanta Commuter Choice Value Pricing Initiative. The onboard monitoring equipment installed in each participating vehicle records each second of vehicle activity. The same criteria was followed as the U.S. Environmental Protection Agency used to develop soak and start time distributions and engine starts per day in the MOBILE6.2 emission rate model. The objective of research efforts is to develop gasoline vehicle soak and start time distributions and engine starts per day for cars and light duty trucks. This data can also be linked back to household demographics. In addition, MOBILE6.2 was used to create an emission inventory for the 13 county Atlanta area. It was found that start and soak distributions observed in Atlanta were significantly different from the default distributions currently used in the MOBILE6.2 emission rate model.