Freeway traffic surveillance and control
- 1 May 1973
- journal article
- Published by Institute of Electrical and Electronics Engineers (IEEE) in Proceedings of the IEEE
- Vol. 61 (5) , 526-536
- https://doi.org/10.1109/proc.1973.9108
Abstract
In the past decade, automatic freeway surveillance and control systems have been introduced in several cities in the United States. Effective use of the hardware that has been implemented requires a sound mathematical basis for evaluation and optimization studies. In this paper, the nature of freeway congestion and the structure of systems which have been implemented to relieve this congestion are discussed. Mathematical models of freeway traffic which allow consideration of on-ramp metering control are developed. Finally, several freeway traffic-control problems are discussed, current approaches are described, and formulations of improved (optimal) approaches are developed.Keywords
This publication has 10 references indexed in Scilit:
- Suboptimal control of linear systems by augmentation with application to freeway traffic regulationIEEE Transactions on Automatic Control, 1973
- On a Ramp-Flow Assignment ProblemTransportation Science, 1972
- An Extended Traffic Assignment Model with Applications to Two-Way TrafficTransportation Science, 1971
- Dynamic traffic assignment by individual path minimization and queuingTransportation Research, 1971
- On-Line Estimation of Traffic Densities from Time-Series of Flow and Speed DataTransportation Science, 1971
- Adjustment of freeway ramp metering rates to balance entrance ramp queuesTransportation Research, 1971
- Surveillance and Control of Tunnel Traffic by an On-Line Digital ComputerTransportation Science, 1969
- Difference Methods for Initial-Value ProblemsPhysics Today, 1959
- On kinematic waves II. A theory of traffic flow on long crowded roadsProceedings of the Royal Society of London. Series A. Mathematical and Physical Sciences, 1955
- CORRESPONDENCE. SOME THEORETICAL ASPECTS OF ROAD TRAFFIC RESEARCH.Proceedings of the Institution of Civil Engineers, 1952