Development of Statewide Freight Flows Assignment Using the Freight Analysis Framework (Faf 3 )

Abstract

This research presents a methodology to estimate freight flows along corridors serving international trade. A methodology to disaggregate regional flows from the Federal Highway Administration’s Freight Analysis Framework (FAF3) to the state level was developed and applied to the State of Texas. To keep international trade moving in a timely and efficient manner, it is important to have accurate information identifying and anticipating capacity shortfalls and congestion nodes. As trade levels increase, the strain on existing infrastructure serving international trade will only get worse; therefore, this information is important for improving strategic investment decisions. This research presents findings from literature reviewed about the FAF3 structure and existing methodologies to estimate freight flows at statewide and regional levels. A methodology to disaggregate national FAF3 data and then assign and estimate the tons of international freight flows through statewide roadways and railroads was developed. Texas’s international trade corridors are used as a case study to apply the methodology and estimate current and future freight demand. Results from the case study demonstrate encouraging findings about this methodology. Conclusions and recommendations to refine and improve this methodology and the FAF3 are provided.