A new strategy for differential bus priority at traffic signals for high frequency services
A new strategy for differential bus priority at traffic signals for high frequency services
The need for sustainable transport operations in cities is focusing more attention on the needs of buses to provide fast, frequent and reliable services. One favoured measure is bus priority at traffic signals, particularly where roadspace is limited. With increasing use of Automatic
Vehicle Location (AVL) systems, it is now possible to provide ‘differential’ priority, where different levels of priority can be awarded to buses at traffic signals according to chosen criteria. At present, common strategies are based on the comparison of the time headway of a
bus with the scheduled headway. However, this paper shows that greater regularity benefits could be achieved through a strategy where priority for a bus is based not only on its own headway, but also the headway of the bus behind. This paper discusses this new strategy,demonstrates its benefits on a theoretical basis and provides initial simulation results.
Bus Priority, Differential Priority, Headway Regularity, Bus Operations, Automatic Vehicle Location (AVL) system
Hounsell, N.B.
54781702-9b09-4fb7-8d9e-f0b7833731e5
Shrestha, B.P.
2c6a62ae-f327-4af5-8b5a-d96cc898726b
21 September 2009
Hounsell, N.B.
54781702-9b09-4fb7-8d9e-f0b7833731e5
Shrestha, B.P.
2c6a62ae-f327-4af5-8b5a-d96cc898726b
Hounsell, N.B. and Shrestha, B.P.
(2009)
A new strategy for differential bus priority at traffic signals for high frequency services.
16th World Congress and Exhibition on Intelligent Transport Systems and Services, Stockholmsmassan, Sweden.
21 - 25 Sep 2009.
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Conference or Workshop Item
(Paper)
Abstract
The need for sustainable transport operations in cities is focusing more attention on the needs of buses to provide fast, frequent and reliable services. One favoured measure is bus priority at traffic signals, particularly where roadspace is limited. With increasing use of Automatic
Vehicle Location (AVL) systems, it is now possible to provide ‘differential’ priority, where different levels of priority can be awarded to buses at traffic signals according to chosen criteria. At present, common strategies are based on the comparison of the time headway of a
bus with the scheduled headway. However, this paper shows that greater regularity benefits could be achieved through a strategy where priority for a bus is based not only on its own headway, but also the headway of the bus behind. This paper discusses this new strategy,demonstrates its benefits on a theoretical basis and provides initial simulation results.
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Published date: 21 September 2009
Venue - Dates:
16th World Congress and Exhibition on Intelligent Transport Systems and Services, Stockholmsmassan, Sweden, 2009-09-21 - 2009-09-25
Keywords:
Bus Priority, Differential Priority, Headway Regularity, Bus Operations, Automatic Vehicle Location (AVL) system
Identifiers
Local EPrints ID: 73962
URI: http://eprints.soton.ac.uk/id/eprint/73962
PURE UUID: 82ec1724-61fa-4d73-a1ab-6ac09e275f6b
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Date deposited: 18 Mar 2010
Last modified: 13 Mar 2024 22:22
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