2020 Volume 75 Issue 6 Pages I_609-I_613
In this study, in order to gain insights into changes in the observance of traffic directions, we compared the traffic directions of the bicycle participants in bicycle accidents in Chiba Prefecture between 2007 and 2017. In a bicycle accident that the car went straight, the percentage of bicycles traveling on the left side of the road increased from 74.2% to 86.6%. In addition, there was a 38.7% reduction in the number of accidents that occurred when a car entered a road from a parking lot, which is an accident in which bicycles passing on the right are likely to be shared.