Study On The Technology Guaranteeing The Safety Of Pedestrian Crossing The Urban Road Signal Intersection

In the signal intersection and the adjacent sections of Urban road,there are pedestrians mixed with motor vehicle driving.The interference and conflict,not only results in the decrease of efficiency in the region,but also a serious threat to pedestrian crossing road,so this paper will study on the measures guaranteeing the safety of the pedestrian crossing road.Firstly collected from investigation and analysis of domestic and foreign related research,the urban road rules and find out that the present study and standardize the relevant exist deficiencies;Then the contents and methods are put forward in view of the related research specific research.Based on pedestrian crossing speed,the number of requirements,pedestrians crossing the street phase green times and traffic lane width,the pedestrian crossing square model is established,calculating the minimum width of crosswalk to ensure the safety of pedestrians crossing street in one time;Present the request of the signal lamp setting and the optimization method,based on the analysis of the traffic,the calculation method about the minimum area of the safety island is put forward and the request of size,and also raise the mode of the crosswalk;Based on the investigation and study about pedestrian crossing through the typical intersection,comparison and analysis in different age,sex,different intersection pedestrian at different times features and crossing the street waiting time limit,and also the other measures are put forward ensuring pedestrian crossing the road;By analyzing the velocity influence on accidents,the driver's subjective feeling speed with actual speed difference and driver's visual characteristic,the model concluded limit signs minimum distance,and the other restrictions' setting method and the condition;Analysis the influence factors of U-turn lane setting,including the lane width,vehicle basic parameters,intermediate zone width,the model about U-turn lane space width and going into the driveway waiting time is built,and the different setting ways of U-turn and its applicable condition also put forward.