A DECOMPOSITION APPROACH FOR SIGNAL OPTIMIZATION IN ROAD NETWORKS
In recent years, considerable advances have been made in techniques for the optimization of signal timings at isolated junctions operating under fixed-time control. This paper shows how these techniques can be applied in the optimization of signal timings in coordinated networks by using a decomposition approach. The signal timings at a junction in a network can be specified fully by the sequence of stages, interstage structures, cycle time, stage durations and offset. Of these variables, the third, fourth and last are endogenous to network optimization methods, the first and second being exogenous. Techniques have been developed recently to optimize all but the last variable (which is not there defined) at individual junctions, and these have been found to give considerable improvements in operational performance. This paper shows how the differences inherent between individual junction and network optimization methods can be reconciled within a decomposition approach so that the latter can benefit from some of the advantages of the former.
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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:
The Boulevard, Langford Lane
Kidlington, Oxford United Kingdom OX5 1GB -
Authors:
- Heydecker, B G
- Publication Date: 1996-4
Language
- English
Media Info
- Pagination: p. 99-114
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Serial:
- Transportation Research Part B: Methodological
- Volume: 30
- Issue Number: 2
- Publisher: Elsevier
- ISSN: 0191-2615
- Serial URL: http://www.sciencedirect.com/science/journal/01912615
Subject/Index Terms
- TRT Terms: Decomposition; Intersections; Networks; Optimization; Roads; Traffic signal timing
- Uncontrolled Terms: Road networks
- Old TRIS Terms: Junctions
- Subject Areas: Highways; Operations and Traffic Management; I71: Traffic Theory;
Filing Info
- Accession Number: 00721921
- Record Type: Publication
- Files: TRIS
- Created Date: Jun 21 1996 12:00AM