Pedestrian violations crossing behavior at signal intersections: A case study in Anning District of Lanzhou

Pedestrian violations crossing behavior at intersections can easily lead to traffic disorder, accidents, injuries and deaths. This paper conducts a case study in Anning District of Lanzhou City to investigate the pedestrian violations by field observation, questionnaires and video recording. Out of 2852 identified valid pedestrian crossing samples at signalized intersections are randomly selected, of which 617 are involved as illegal violation samples. The factors affecting the violations are extracted and divided into internal and external factors. The internal ones are according to age and gender factors, while the external factors contain the crosswalk length, crossing time, headway, red light duration and number of partners. The results show that the rate of violation crossing among the elderly pedestrian is higher than that of other age categories and the rate of male is slightly higher than that of female. In the external factors, the crosswalk length, the crossing time and the headway of motor vehicle are positive correlation with the violation rate. For the signal light part, the longer red light duration means longer waiting time and the pedestrian violation rate will significantly increase. Furthermore the countdown signals are conducive to reducing the violation rate compared with no countdown display. Interestingly, the violation rate do not increase with the number of companions, however it's more prone to violation for the individual pedestrians. Based on the above analysis, the corresponding solving strategies are proposed.