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Capacity and flow breakdown on U.K. motorways

Capacity and flow breakdown on U.K. motorways
Capacity and flow breakdown on U.K. motorways
With continued increases in traffic demand, congestion is now recurring on many sections of the UK motorway network in peak periods. This paper describes a large UK study undertaken by the University of Southampton for the UK Transport Research Laboratory aimed at understanding and predicting motorway capacity and the flow breakdown phenomenon. Such an understanding of fundamental parameters is clearly of importance if possible improvement measures are to be assessed and prioritised. The study was based on the video-based collection, compilation and statistical analysis of a large traffic database covering flows, composition, speeds, densities, headways and lane changing at some fourteen motorway sections suffering from recurrent congestion. The paper summarises the results of the study including predictions of motorway capacity merge capacity and flow breakdown occurrence. The paper conclude with a discussion of committed proposed improvements to motorway operations in the UK, including motorway widening, motorway toll traffic management and control, and new advanced information systems.
08691064
277-294
ARRB Group
Hounsell, N.B.
54781702-9b09-4fb7-8d9e-f0b7833731e5
McDonald, M.
cd5b31ba-276b-41a5-879c-82bf6014db9f
Barnard, S.R.
cfb97e37-7f22-4386-a203-1cccea2ce019
Hounsell, N.B.
54781702-9b09-4fb7-8d9e-f0b7833731e5
McDonald, M.
cd5b31ba-276b-41a5-879c-82bf6014db9f
Barnard, S.R.
cfb97e37-7f22-4386-a203-1cccea2ce019

Hounsell, N.B., McDonald, M. and Barnard, S.R. (1994) Capacity and flow breakdown on U.K. motorways. In Proceedings of the Second International Symposium on Highway Capacity. ARRB Group. pp. 277-294 .

Record type: Conference or Workshop Item (Paper)

Abstract

With continued increases in traffic demand, congestion is now recurring on many sections of the UK motorway network in peak periods. This paper describes a large UK study undertaken by the University of Southampton for the UK Transport Research Laboratory aimed at understanding and predicting motorway capacity and the flow breakdown phenomenon. Such an understanding of fundamental parameters is clearly of importance if possible improvement measures are to be assessed and prioritised. The study was based on the video-based collection, compilation and statistical analysis of a large traffic database covering flows, composition, speeds, densities, headways and lane changing at some fourteen motorway sections suffering from recurrent congestion. The paper summarises the results of the study including predictions of motorway capacity merge capacity and flow breakdown occurrence. The paper conclude with a discussion of committed proposed improvements to motorway operations in the UK, including motorway widening, motorway toll traffic management and control, and new advanced information systems.

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More information

Published date: 1994

Identifiers

Local EPrints ID: 75289
URI: http://eprints.soton.ac.uk/id/eprint/75289
ISBN: 08691064
PURE UUID: b3f7ad22-0da6-41b0-9899-7ed08ae3ca50

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Date deposited: 11 Mar 2010
Last modified: 10 Dec 2021 16:57

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Contributors

Author: N.B. Hounsell
Author: M. McDonald
Author: S.R. Barnard

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