Analysis on behaviours and safety of VRUs at unsignalized roadway crosswalk.

Pedestrian is the VRU in urban traffic system, especially along the motorization in city, the right-of-way of pedestrian was withered, along with the development of vehicles and the road net construction. And it is withering at present. At unsignlized roadway crosswalk, pedestrian is in a poorer situation for he/she has to watch, wait, grasp the rare gaps in the rapid vehicle flows, because drivers in Beijing are impatient for any delay on their way unless they meet a red signal. In this article, two unsignalized crosswalks on roadway in Beijing are introduced. Based on statistic and observation, the behaviours and safety condition of pedestrian are described. Comparing the different traffic flow, the speeds on the roads and the gaps for pedestrian are analyzed, which are the basis for related study and the pedestrian walking situations. Speeds are measured according the types of pedestrian for study and compared with those in other conditions, which are an important parameter in behaviour analysis. Especially, not only the vehicle flow character, but also the number of pedestrians in platoon or crowds can influence the walking behaviours and safety condition. In observation, it shows that the waiting time influence the critical gap, not only the venturesome people can grasp the minor gaps. For pedestrians in a platoon or crowd can encourage each other. It results in the Game between the drivers and pedestrians, when they act in related tactic before they run into conflict area, according to the opposing parties, respectively. Gaps in vehicle flow can be enlarged by pedestrians indirectly, although it comes from vehicles directly. So the priority of right-of-way varies in different roadway, in light of the traffic condition and individuals who involved in the competition of right-of-way. The statistic of the data enriches related analysis based on observation and it useful for further research. Advices are provided for practice in engineering, and the conclusion can also be reference for similar measure. For the covering abstract see ITRD E138091. This paper is available from http://www.ictct.org/workshops/07-Beijing/12Shi%20Jiangang2433.pdf.