New Level-of-Service Standard for Signalized Crosswalks with Bi-Directional Pedestrian Flows
Publication: Journal of Transportation Engineering
Volume 131, Issue 12
Abstract
This paper proposes, for the first time, a new set of level-of-service (LOS) standards for signalized crosswalks in Hong Kong commercial/shopping areas which explicitly take the bi-directional pedestrian flow effects into account. An interview survey technique which utilized pedestrian stated preference was used to determine the respective congestion boundaries for each service level. This paper defines explicitly the LOS boundaries for different levels of bi-directional flow regarding area occupancy, pedestrian flow, and walking speed. The boundaries range from strong effect (0.1–0.5 flow ratios) on the minor flow direction to a mild effect (0.5–1.0 flow ratios) on the major flow direction. These results are complementary to and are in keeping with those LOS standards for walkways reported in previous studies which did not account for the effects of bi-directional flow. The determined perceived pedestrian LOS under bi-directional flow is expected to be directly applicable to Hong Kong or other Asian cities with similar pedestrian physical characteristics and land use.
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Acknowledgments
This research was jointly supported by a grant awarded by the Research Grant Council of the Hong Kong Special Administration Region (PolyU 5143/03E) and two postgraduate studentships from the Research Committee of The Hong Kong Polytechnic University.
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© 2005 ASCE.
History
Received: Mar 25, 2004
Accepted: Jan 31, 2005
Published online: Dec 1, 2005
Published in print: Dec 2005
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