Factors Affecting Pedestrian-vehicle Collision At A Mid-block Zebra Crossing

Crosswalks are important facilities for pedestrians crossing the street.They play a significant role in ensuring pedestrian safety.However,most of the crosswalks on the road section are not controlled by traffic lights.Pedestrians are often overwhelmed by the fast passing vehicles when they cross the street.pedestrians and motor vehicles competing for road rights are one of the important causes of traffic accidents.How to avoid the conflict between pedestrians and motor vehicles,increase the yield rate of motor vehicles,and ensure the safety of pedestrians crossing the street have become the urgent traffic problems.Based on the above issues,to analyze the predecessors related research,the author takes the typical unsignalized crosswalks in Suzhou as the research object.Through a large number of on-site traffic investigations,the Pedestrian-Motor Vehicle Conflicts and yield decisions were studied from various aspects including pedestrian behavior,transportation facilities,and drivers and vehicle characteristics.First,select 9 crosswalks without traffic light control in Suzhou as the survey site.The method of combining on-site observation and video was selected to investigate the yield behavior of motor vehicles,and 4,786 motor vehicle sample data were obtained.Statistical analysis of sample data was performed using binary logistic regression methods.Using vehicle behavior as a dependent variable,SPSS statistical software was used to screen a number of factors and select a total of five indicators of pedestrian behavior and traffic facilities as independent variables,and establish a uncontrolled motor vehicle behavioral model of pedestrian crosswalks.Then,explain and evaluate the model(classification table,goodness of fit,log likelihood and pseudo-decision coefficient,likelihood ratio test).It proves that pedestrian behavior and transportation facilities have an impact on motor vehicle behavior.It also shows that motor vehicle type and vehicle price are not related to motor vehicle behavior.The results show that pedestrian behavior has the most significant impact on motor vehicle yields.The number of pedestrians waiting to cross the street,the position of pedestrians while waiting and the distance between pedestrians and vehicles ahead will all affect the behavior of motor vehicles.In the face of pedestrians of different ages,motor vehicles are most likely to yield to elderly pedestrians.Pedestrians using gestures can also increase the likelihood of motor vehicle yielding.In terms of transportation facilities,brushing “motor vehicle give way to pedestrians ” on the ground has the most significant effect on improving the yielding of motor vehicles for pedestrians.The diamond preview notice is not included in the model,indicating that it has the least impact on motor vehicle yield.Secondly,a questionnaire survey was conducted on the drivers and a total of 738 valid questionnaires were retrieved.Based on the questionnaire data,the driver's yield expectation model was established by using the same method.It was verified that the qualifications,driving years,cognition and attitude had influence on the driver's submission;among them,the driving age had the greatest impact on the driver's yielding.Finally,based on the above analysis,the commonality of motor vehicle's yield behavior was found out,and the influencing factors included in pedestrian behavior,traffic facilities and driver characteristics were obtained,and corresponding safety improvement suggestions were put forward to improve the identified factors,to improve the safety of pedestrians crossing the street,and to provide reference for the design of cross-street traffic facilities at the crosswalks in the future.