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Vehicle Location Systems in Urban Traffic Control

  • Greg Marsden (a1)

Abstract

This short paper discusses briefly the role of the current forms of bus priority used in the United Kingdom and how these strategies are incorporated within our urban traffic control systems.

The philosophy behind the SCOOT (Split, Cycle and Offset Optimization Technique) demand-responsive signal timings program is discussed, and the latest results from the bus priority trials carried out in London by the University of Southampton and London's Traffic Control Systems Unit (TCSU) are appraised. The system installed in London is compared with current dead reckoning vehicle location systems and the major differences highlighted.

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1Hunt, P. B.Robertson, D. I.Bretherton, R. D. and Winton, R. I. (1981). SCOOT–A traffic responsive method of co-ordinating signals. Transport and Road Research Laboratory, Department of Environment, Department of Transport, TRRL Report No LR 1014. Transport and Road Research Laboratory, Crowthorne, UK.
2Robertson, D. I. (1969). TRANSYT: A traffic network study tool. Road Research Laboratory, Ministry of Transport, TRRL Report No. LR 253, Transport and Road Research Laboratory, Crowthorne, UK.
3Heyes, D. S. and Jenkins, R. (1980). Benefits from bus priority. Proceedings P.T.R.C. Summer Conference.
4Robertson, D. I. and Vincent, R. A. (1975). Bus priority in a network of fixed-time signals. Road Research Laboratory, Department of Environment. TRRL Report No. 666. Transport and Road Research Laboratory, Crowthorne, UK.
5Bell, M. C. and Bretherton, R. D. (1986). Ageing of fixed-time traffic signal plans. Department of Transport, TRRL Report No. LR 879. Transport and Road Research Laboratory, Crowthorne, UK.
6Hounsel, N. and Landles, J. (1995). Bus priority in SCOOT: Results of the PROMPT trials in London. Proceedings P.T.R.C Summer Conference, 1995.
7Bowers, D. J.Palmer, J. P. and Wall, G. T. (1995). Automatic incident detection and improved traffic control in urban areas. Proceedings P.T.R.C. Summer Conference, 1995.
8Carden, P. J. CHounsell, N. B.MacDonald, M. and Bretherton, R. (1989). The accuracy of SCOOT data. Department of Transport, TRL Contractor Report 153. Transport and Road Research Laboratory, Crowthorne, UK.

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Vehicle Location Systems in Urban Traffic Control

  • Greg Marsden (a1)

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