Macro-level Intermodal Capacity Modeling

This report is presented in two parts: modeling and testing. In part 1, a summary of existing capacity models and speed/volume functions is presented. An effort is made to organize it in a systematic and consistent way for easy reading and understanding. A critique of certain existing capacity models and relationship functions, where further development is possible, is also presented. This report aims to demonstrate the comprehensive model that was discussed in the previous tasks to estimate the capacity of intermodal freight transportation. The estimation of capacities is conducted according to the previous proposed formulas for different transportation modes for freight transportation. Moreover, the model is going to be demonstrated in the case study of freight transportation analysis in the Hampton Roads Area. The optimization of freight assignment and routing in this region should reflect the validity of the model. The model identifies the bottlenecks in an intermodal network, as well as strategies to increase system-wide capacity for increased freight movement demand. Besides the current state analysis, this model is applied to forecast the necessity of expansion and improvement for specific choke points in order to face increased traffic volume after the expansion of the Panama Canal. Finally, this study uses what-if analysis for the condition that a few central links were disrupted in the transportation. The robustness of transportation system is evaluated for the Hampton Roads Area in part 2.

Language

  • English

Media Info

  • Media Type: Digital/other
  • Features: Figures; Maps; References; Tables;
  • Pagination: 71p

Subject/Index Terms

Filing Info

  • Accession Number: 01604935
  • Record Type: Publication
  • Report/Paper Numbers: NCITEC Project No. 2013-02
  • Files: UTC, NTL, TRIS, RITA, ATRI, USDOT
  • Created Date: Jul 20 2016 9:49AM