Regulatory Information Design for Reducing Collision Accidents at the Beginning of Work Zone of Expressway

Abstract

The spread of advanced driver assistance systems, such as collision damage reduction brakes, is expected to improve the safety and smoothness of road traffic. On the other hand, there is concern in various quarters about the increase in collisions at the beginning of the works zone among the traffic accidents that have occurred in recent years. To address this problem, this study believes that driver-focused countermeasures should be prioritized, and attempted to devise and evaluate a regulatory information design for the beginning of the work zone that is easily visible and conveys instructions. Driving behavior data and interview data were collected from indoor driving experiments using a driving simulator. The results of the analysis suggest that a regulatory information design at the beginning of the work zone that includes a sign car with a red and white checkerboard background and a large arrow highlighting a lane change warning is expected to reduce the risk of accidents.