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Journal Article

Citation

Koh PP, Wang YD. J. Adv. Transp. 2007; 41(1): 53-68.

Affiliation

Road Safety Engineering Unit, Land Transport Authority, Singapore, Singapore.

Copyright

(Copyright © 2007, Institute for Transportation, Publisher John Wiley and Sons)

DOI

unavailable

PMID

unavailable

Abstract

Driver performance in responding to the green-amber-red signal change was studied based on a sample of 2316 last crossing and first stopping vehicles collected by unobtrusive observations at 10 junction approaches in Singapore. Two schemes, a speed-distance diagram (S-D) and an acceleration-deceleration (A-D) diagram, were used to demarcate the driving situations; the driver actions, as revealed outcomes of driver decision-making, were mapped onto these diagrams. The speed-distance diagram can give some indication on what a driver would possibly do. The more complicated acceleration-deceleration diagram is useful for diagnosing the appropriateness of the driver actions. An application of the A-D diagram was demonstrated, and several situations prone to red-running were noted.

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