2018 Volume 4 Issue 1 Pages A_238-A_245
Recently, automated driving technology has been developed in order to reduce traffic accidents and to mitigate traffic congestions. In terms of road and traffic administration, however, some problems remain to be solved. For example, it is concerned that traffic safety and efficiency will be affected by the penetration of automated vehicles to traffic flow. In this paper, adaptive cruise control (ACC), which is a principal system of automated driving technology, was focused. Then, the traffic flows which consist of both ACC vehicles and non- ACC vehicles, were generated and its safety and efficiency were investigated through an indoor driving experiment using a driving simulator. As a result, it was observed that traffic flow rate was improved especially in the section with sag or sharp curve as the proportion of ACC vehicles increased. In addition, it was also revealed that the potential collision risk was alleviated by the introduction of ACC vehicles.
