Statistical Analysis of Spatial Spreading of Bicycling on the Left Side of Streets by Introducing Bicycle Marking at Residential Streets

Abstract

Both-way running of bicycles, which is commonly seen in Japan, but unique system in the world, has been focused on as serious safety problems at junctions and so on. In Kanazawa city, bicycle lanes in residential streets, which promote bicycles running on left side of the carriageway, have been introduced to solve this problem, and on-street instruction campaigns have been intensively carrying out. As a result, it was found that bicycle accidents decreased on the streets with bicycle lanes and in the districts of area-wide implemented of lanes. The aim of this study is to confirm the special spreading effects of bicycle behavior of left side running on the streets along the bicycle lane streets by the implementation of area-wide bicycle lane system. By employing Generalized Linear Models (GLM) the ratios of left side running of bicycles are statistically significant on the streets along the bicycle lane streets as well.