1-V_am

[54] Study on the Relationship between Shapes of Chicanes and Speed Reduction Effects on Residential Roads

○Sachiko Ohashi¹, Hiroshi Kobayashi¹ (1. National Institute for Land and Infrastructure Management)

Keywords:chicane, slalom, road safety, residential road, pedestrian

In order to expand the use of chicanes that contribute to traffic safety, this study aims to show the shapes of chicanes that can be installed on common width residential roads and have speed reduction effects. In this study, subjects were driven on chicanes with different flexion intervals and transverse configurations on test course, and the speed reduction effect, the stability of driving, and the vehicle traveling position were acquired. Based on these results, the shapes of the chicanes which have speed reduction effects, are not difficult to drive at low speed, and have no particular problems at the vehicle traveling position are shown. It is also shown that psychological effect of reducing speed is lager in block than in white line. At the same time, it is confirmed that the effects of chicanes components on speed reduction, such as narrow flexing interval reduces vehicle speed.