Time-Based Model for Estimating Fuel Consumption by Linking Field and Laboratory Measurements

This paper summarizes the research work from a project which is targeted toward the enhancement of the capabilities of an intercity transportation planning model for evaluating fuel/CO2 emissions impacts resulting from various regional transportation policies. This study links the on-road fuel consumption measurements with lab measurements by using the U.S. federal test procedure (FTP)(1). The objective is to develop a set of adjustment factors that are sensitive to vehicular speeds and highway classes, thus accounting for the effects of traffic congestion. Variations in speeds on 7 highway classes are considered in developing a set of adjustment equations for estimating fuel consumption. A case study on toll operations at a freeway toll plaza in Taiwan is conducted to demonstrate the performance of the developed model in estimating fuel consumption resulting from manual and electronic toll collection (ETC). The results show that the time-based model (TBM) is a promising approach that provides more accurate estimates than those from the distance-based MOBILE model. The TBM may provide fuel/CO2 emissions calculations as link attributes for easy integration with the four-step transportation planning models for evaluating transportation policies.


  • English

Media Info

  • Media Type: DVD
  • Features: Figures; References; Tables;
  • Pagination: 20p
  • Monograph Title: TRB 89th Annual Meeting Compendium of Papers DVD

Subject/Index Terms

Filing Info

  • Accession Number: 01155447
  • Record Type: Publication
  • Report/Paper Numbers: 10-0877
  • Files: TRIS, TRB
  • Created Date: Jan 25 2010 10:24AM