Speed Character Study for Motor Vehicle and Bicycle at Non-barrier Section

It is a common phenomenon that bicyclists and motorists share the non-barrier section in urban road of China. Therefore, there exist interactions between these two participants. This research analyzes the speed characters under mixed traffic conditions by a field study in Shijiazhuang city. The difference of bicycles in the same lane is specified by the comparison of average speed, which illustrates the complicated behavior of bicyclist. Based on the idea of time-space conversion, the empirical speed model concerning bicycle flow rate and the side distance between bicycle and motor vehicle is developed using collected field data, which is accepted by F-test. On the basis of study results, it is found that a linear trend exists in the evolvement of motor vehicle speed owing to influence of bicycles.