THE CELL TRANSMISSION MODEL: A DYNAMIC REPRESENTATION OF HIGHWAY TRAFFIC CONSISTENT WITH THE HYDRODYNAMIC THEORY
This paper presents a simple representation of traffic on a highway with a single entrance and exit. The representation can be used to predict traffic's evolution over time and space, including transient phenomena such as the building, propagation, and dissipation of queues. The easy-to-solve difference equations used to predict traffic's evolution are shown to be the discrete analog of the differential equations arising from a special case of the hydrodynamic model of traffic flow. The proposed method automatically generates appropriate changes in density at locations where the hydrodynamic theory would call for a shockwave; i.e., a jump in density such as those typically seen at the end of every queue. The complex side calculations required by classical methods to keep track of shockwaves are thus eliminated. The paper also shows how the equations can mimic the real-life development of stop-and-go traffic within moving queues.
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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:
- Daganzo, C F
- Publication Date: 1994-8
Language
- English
Media Info
- Features: Figures; References;
- Pagination: p. 269-287
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Serial:
- Transportation Research Part B: Methodological
- Volume: 28
- Issue Number: 4
- Publisher: Elsevier
- ISSN: 0191-2615
- Serial URL: http://www.sciencedirect.com/science/journal/01912615
Subject/Index Terms
- TRT Terms: Hydrodynamics; Queuing theory; Traffic density; Traffic flow theory; Traffic models
- Old TRIS Terms: Queueing models
- Subject Areas: Highways; Hydraulics and Hydrology; Operations and Traffic Management; I71: Traffic Theory;
Filing Info
- Accession Number: 00667813
- Record Type: Publication
- Files: TRIS, ATRI
- Created Date: Oct 3 1994 12:00AM