1. Driving situations and driver decisions at road traffic signals.
- Author
-
Koh, P. P. and Wong, Y. D.
- Subjects
TRAFFIC signs & signals ,TRAFFIC safety ,TRAFFIC engineering ,DECISION making ,AUTOMOBILE driving ,PSYCHOLOGY - 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. [ABSTRACT FROM AUTHOR]
- Published
- 2007
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