Abstract
In this study, traffic accident factors at crossings of community roads and arterial roads were analyzed. The authors supposed that if a community road were severed by an arterial road that was built after the community road was built, “the neighborhood DNA”, which is a local characteristics, enhances the risk of the crossing. “the neighborhood DNA” means a habit with the residents in the neighborhood to across an arterial road at a such crossing. The authors define a crossing that was made by an arterial road dividing a community road as a neighborhood DNA type crossing. In the analysis, sudden brake outbreak point data, which were provided from Honda R & D and traffic accident data from Saitama Prefecture Police were used. This study conducted two analyses; one was an analysis on the traffic accidents and the other was an analysis on sudden breaks. In conclusion, it was suggested that neighborhood DNA type crossings are dangerous.
