Mid-America Transportation Center


Date of this Version


Document Type



Report # MATC-MST: 120 Final Report 25-1121-0001-120


2011 Copyright of Mid-America Transportation Center


This study attempts to analyze the impact of traffic on the US highway system considering both passenger vehicles and trucks. For the analysis, a pseudo-dynamic traffic assignment model is proposed to estimate the time-dependent link flow from the intercity travelers on the network covering the continental U.S. A two-stage simulation scheme was designed to separate the intercity and non-intercity travelers involved in the link flow. The fuel consumption and emissions from the intercity travelers are estimated based on data in Mobile, the emission model developed by EPA. The suggested methodology could be adopted in further deployment of a nationwide transportation system analysis model that supports the evaluation of planned transportation improvement plans. Several suggestions are made for future study.