Evaluating the Safety Level Based on the Driver Decisions when Acquiring Signal Change Information

抄録

Intersection is one of the accident-prone locations. To avoid accidents at the intersection, it is important for drivers to confirm the flashing green and non-flashing red of pedestrian signals. This study is based on a assumption that the confirmation of a pedestrian signal enables the drivers to anticipate the change of the signal to yellow, and this provides allowance time for the proceed or stop decision; and thereby this leads to improved safety at intersections. In this paper, safety level of the signalized intersection with pedestrian signal is evaluated by the user experiment data collected in the laboratory. As a result, it was clearly shown that anticipation of a signal change to yellow by using a pedestrian signal enables a vehicle to avoid the dilemma zone; and the safety at the intersection when the signal changes to yellow is thereby better than the case where such information is not provided.