SELECTION AND EVALUATION OF OPTIMAL FREEWAY DESIGN BY COMPUTER SIMULATION

This paper describes the testing, evaluation, and calibration of an existing simulation package (FREQ6PE and FREQ6PL) and its use for selecting the optimal geometric configuration and control strategy of a new freeway facility in the Minneapolis-St. Paul metropolitan area. Evaluation and calibration were accomplished by comparing simulation results with actual field data of an existing facility. The testing and calibration process revealed that the programs are reliable and can be effectively used for simulating either a hypothetical or an existing situation with reasonable accuracy after some necessary adjustments have been made to reflect local conditions. After the calibration stage, the programs were quite useful in evaluating the future geometric and control alternatives of the planned facility. In addition to the above results, the difficulties encountered in using the FREQ6 programs and suggestions for their resolution are enumerated. Finally, suggestions for future improvements to the programs are proposed. (Author)

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• Supplemental Notes:
  • Publication of this paper sponsored by Committee on Freeway Operations.
• Authors:
  • Michalopoulos, Panos G
  • Plum, Roger A
• Publication Date: 1980

Media Info

• Media Type: Print
• Features: Figures; References; Tables;
• Pagination: pp 40-47
• Monograph Title: Grade crossings, devices, visibility and freeway operations
• Serial:
  • Transportation Research Record
  • Issue Number: 773
  • Publisher: Transportation Research Board
  • ISSN: 0361-1981

Subject/Index Terms

• TRT Terms: Calibration; Computer aided design; Computer programs; Design; Freeways; Highway design; Optimization; Simulation
• Old TRIS Terms: Freeway design; Optimum design
• Subject Areas: Design; Highways; Operations and Traffic Management; I73: Traffic Control;

Filing Info

• Accession Number: 00334175
• Record Type: Publication
• ISBN: 0309031176
• Files: TRIS, TRB
• Created Date: Oct 28 1981 12:00AM