THE DEVELOPMENT AND VALIDATION OF A FREEWAY TRAFFIC SIMULATOR
THE DEVELOPMENT AND VALIDATION ARE PRESENTED OF A DIGITAL TRAFFIC SIMULATOR FOR USE AS A TOOL IN THE ANALYSIS OF FREEWAY PHENOMENA. THE SIMULATOR WAS CONSTRUCTED AS A GENERAL MODE. DIFFERENT FREEWAY TRAFFIC SITUATIONS CAN BE SIMULATED BY MERELY INPUTING THE DESCRIPTIVE GEOMETRIC CHARACTERISTICS AND PERTINENT TRAFFIC DATA INCLUDING THE TOTAL TRAFFIC VOLUME ON THE FREEWAY, SPEED DISTRIBUTIONS, AND THE PERCENTAGE OF COMMERCIAL VEHICLES IN THE STREAM. THE MODEL HAS A CAPACITY FOR THE SIMULTANEOUS, DYNAMIC ANALYSIS OF TRAFFIC FLOW ON 5 FREEWAY LANES, 4 ON-RAMPS, AND 6 OFF-RAMPS. THE RAMPS MAY BE LOCATED EITHER ON THE RIGHT-HAND OR LEFT-HAND SIDE OF THE FREEWAY. WHEN THE SIMULATOR IS PROCESSED ON A 256K IBM 360/65 SYSTEM, FREEWAY SECTIONS UP TO 3 1/2 MILES IN LENGTH CAN BE SIMULATED. HOWEVER, WITH PROPER CONSIDERATION FOR COMPUTER STORAGE CAPACITY, ANY OF THESE LIMITS CAN BE MODIFIED VIA INPUT INFORMATION. THE FREEWAY SIMULATION MODEL WAS VALIDATED AT BOTH MICROSCOPIC AND MACROSCOPIC LEVELS. SEVERAL DIFFERENT MACROSCOPIC COMPARISONS WERE MADE BETWEEN SIMULATED PHENOMENA AND DATA COLLECTED ON SECTIONS OF THE EISENHOWER EXPRESSWAY IN CHICAGO AND A LONG ISLAND PARKWAY, AND DATA REPORTED IN THE 1965 HIGHWAY CAPACITY MANUAL. THE COMPARISONS WERE CONSISTENT AND REASONABLE. /AUTHOR/
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Supplemental Notes:
- Paper sponsored by Committee on Characteristics of Traffic Flow and presented at the 49th Annual Meeting. 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.
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Authors:
- Sinha, Kumares C
- Dawson, Robert F
- Publication Date: 1970
Media Info
- Media Type: Digital/other
- Features: Appendices; Figures; References;
- Pagination: pp 34-47
- Monograph Title: Traffic flow characteristics
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Serial:
- Highway Research Record
- Issue Number: 308
- Publisher: Highway Research Board
Subject/Index Terms
- TRT Terms: Commercial vehicles; Digital computers; Freeways; Information processing; Traffic flow; Traffic simulation; Traffic speed; Traffic volume
- Old TRIS Terms: Digital systems
- Subject Areas: Highways; Operations and Traffic Management;
Filing Info
- Accession Number: 00225832
- Record Type: Publication
- Files: TRIS, TRB
- Created Date: Oct 13 1970 12:00AM