ANALYSIS OF INTERRUPTED TRAFFIC FLOW BY FINITE DIFFERENCE METHODS
Three numerical techniques for macroscopic analysis of traffic dynamics at signalized links (isolated or coordinated) are presented. The techniques are based on finite differences in time and space and assist in implementing continuum models at real situations. The general methodology presented allows treatment of any arrival and departure pattern, inclusion of sinks or sources, employment of any desired equilibrium flow-density relationship and arbitrary specified initial conditions. Implementation of the proposed method to a signalized intersection and a coordinated link suggests satisfactory agreement with field data and notable agreement with analytical results, respectively. Comparisons made under progressively realistic assumptions demonstrate substantial improvements in model performance as the complexity of the assumptions increases. (Author/TRRL)
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Availability:
- Find a library where document is available. Order URL: http://worldcat.org/issn/01912615
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Corporate Authors:
Pergamon Press, Incorporated
Headington Hill Hall
Oxford OX30BW, -
Authors:
- Michalopoulos, P G
- Beskos, D E
- Lin, J-K
- Publication Date: 1984
Media Info
- Features: Figures; References; Tables;
- Pagination: p. 409-421
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Serial:
- Transportation Research Part B: Methodological
- Volume: 18B
- Issue Number: 4/5
- Publisher: Elsevier
- ISSN: 0191-2615
- Serial URL: http://www.sciencedirect.com/science/journal/01912615
Subject/Index Terms
- TRT Terms: Finite differences; Intersections; Mathematical models; Signalized intersections; Traffic flow; Traffic signals
- Uncontrolled Terms: Macroscale
- ITRD Terms: 6460: Finite difference method; 455: Junction; 6473: Mathematical model; 671: Traffic flow; 565: Traffic signal
- Subject Areas: Highways; Operations and Traffic Management; I71: Traffic Theory;
Filing Info
- Accession Number: 00396610
- Record Type: Publication
- Source Agency: Transport Research Laboratory
- Files: ITRD, TRIS
- Created Date: Sep 30 1985 12:00AM