ALTERNATIVE METHODS TO ITERATE A REGIONAL TRAVEL SIMULATION MODEL: COMPUTATIONAL PRACTICALITY AND ACCURACY

The results of full-scale testing of the available methods for implementing an iterative travel simulation process are presented. These methods include simple iteration of the simulation model chain, weighting iterative model outputs by the method of successive averages, and the Evans equilibrium algorithm. Simulated travel demands for each version of the model are compared with regional highway performance monitoring system data, 1990 highway traffic counts summarized by screenline, and public transit ridership data. These accuracy checks, in concert with estimates of the computational effort needed to execute each model variation, provide a useful insight into the costs and benefits associated with implementing an iterative travel simulation model. These comparisons also give guidance with respect to the relative efficacy of each iterative approach.

• Record URL:
  http://onlinepubs.trb.org/Onlinepubs/trr/1995/1493/1493-003.pdf
• Record URL:
  https://scholar.google.com/scholar_lookup?title=ALTERNATIVE+METHODS+TO+ITERATE+A+REGIONAL+TRAVEL+SIMULATION+MODEL%3A+COMPUTATIONAL+PRACTICALITY+AND+ACCURACY&author=W.+Walker&author=H.+Peng&publication_year=1995
• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/isbn/0309061709
• Supplemental Notes:
  • This paper appears in Transportation Research Record No. 1493, Travel Demand Forecasting, Travel Behavior Analysis, Time-Sensitive Transportation, and Traffic Assignment Methods. Distribution, posting, or copying of this PDF is strictly prohibited without written permission of the Transportation Research Board of the National Academy of Sciences. Unless otherwise indicated, all materials in this PDF are copyrighted by the National Academy of Sciences. Copyright © National Academy of Sciences. All rights reserved
• Authors:
  • Walker, W Thomas
  • Peng, Haiou
• Publication Date: 1995

Language

• English

Media Info

• Features: Figures; References; Tables;
• Pagination: p. 21-28
• Monograph Title: Travel demand forecasting, travel behavior analysis, time-sensitive transportation, and traffic assignment methods
• Serial:
  • Transportation Research Record
  • Issue Number: 1493
  • Publisher: Transportation Research Board
  • ISSN: 0361-1981

Subject/Index Terms

• TRT Terms: Accuracy; Algorithms; Benefits; Costs; Equilibrium (Mechanics); Implementation; Iterative methods; Simulation; Travel demand; Weighting
• Uncontrolled Terms: Computational effort
• Old TRIS Terms: Weighting functions
• Subject Areas: Finance; Highways; Planning and Forecasting; Public Transportation; Research; I72: Traffic and Transport Planning;

Filing Info

• Accession Number: 00714852
• Record Type: Publication
• ISBN: 0309061709
• Files: TRIS, TRB
• Created Date: Dec 8 1995 12:00AM