抄録
It is important for the design of a reasonable traffic signal to fit the level of services of intersection and traffic characteristics relating to driver's psychological response that arises depending the waiting time. In this paper, a method for estimating and/or predicting the driver's psychological response to the condition when seeing a rough traffic flow is proposed based on fuzzy set theory. Concretely, when drivers waiting to a traffic signal are exposed to the impact of psychological factors, the fuzzy relation between level of services of intersection and traffic flow characteristics of the random image are approximately given a bi-variate membership function. Next, a method for evaluating the driver's psychological response is proposed by introducing the concept of fuzzy probability. Finally, the validity and applicability of the proposed method are confirmed experimentally by camera data. The experimental results are in good agreement with the theory.
