EIIP Volume 4: Mobile Sources Preferred and Alternative Methods

摘要

This volume presents guidance on the use of three specific data sources for usein developing distributions used in the MOBILE emission factor model. These distributions include registration, mileage accumulation, travel distributions, fuel consumption, and vehicle miles traveled (VMT). In this document, methodologies and example calculations of the estimation of local on-road vehicle fleet characteristics and activity from inspection and maintenance (I/M) program, remote sensing, and fuel sales data are presented. Specific evaluations include the estimation of mileage accumulation rates, registration distributions, diurnal travel distributions and regional vehicle miles traveled (VMT). This guidance is separated into three topics according to the type of data being evaluated: develoment of regestration distributions and mileage accumulation rates from I/M program data; development of registration distributions, diurnal travel distributions, VMT mix, fleet registration information, and I/M program status from remote sensing program data; and development of fuel consumption and VMT from tax revenue and other data sources.