Model of pedestrians crossing time at signalized intersection with exclusive pedestrian phase

To determine the time of green light for pedestrians at signalized intersection with exclusive pedestrian phase, a model for estimating crossing times is proposed. The model consists of two parts. The time function for pedestrian crossing refuges is derived using wave theory, and the time function for pedestrian crossing intersection diagonally is an adaptation of existing HCM model. The model attempts to describe the influence of dominant platoon, opposite platoon and rectangular cross pedestrian flow. According to the data extracted from video survey and artificial measurement of four intersections at Weihai, the statistical analysis comes to conclusions. The 15th percentile speed of pedestrians crossing intersection diagonally and non-physical refuges is 1.43 m/s, and that of pedestrians crossing physical refuges is 1.35 m/s. The effective widths of pedestrians crossing intersection diagonally are 9 meters and 12 meters. Finally, the model parameters were calibrated by using SPSS. Results of a case study show that the model can more accurately predict pedestrian crossing time, and the error is within 5%.