Abstract A traffic signal is a substantially different traffic sign compared with other traffic devices. The uniqueness of traffic signals is manifested in their displaying an alternate message, not a constant one. The transition period from one message to another creates a decision problem for drivers. An inappropriate decision might create the risk of a rear-end collision. This article presents a disaggregate behavioral model of drivers' decisions when the green light ends. It is demonstrated, and supported by field data, that a large option zone increases the indecision of drivers, which creates a greater risk of rear-end collisions. The influence on drivers' decisions of distance from the intersection and of approach speed is examined through the model.
The relationship between an option space and drivers' indecision at signalized intersection approaches
Transportation Research Part B: Methodological ; 23 , 6 ; 401-413
1989-02-01
13 pages
Article (Journal)
Electronic Resource
English
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