Optimized Model of Pedestrian Crossing Width Based on GI/G/1 Queuing System

To improve the capacity of signal intersection pedestrian crossing and pedestrians' safety, considering the influence of the pedestrian crossing width by pedestrian service level, this paper presents the concept of pedestrian safety radius based on the pedestrian service level. The typical signalized intersection pedestrian entrance and passengers flux were described as a queuing system at rush hours. Because the pedestrian at signalized intersections walks the line regularly with vacation properties, the queuing system was represented as the GI/G/1 queuing system with batch service. The paper then builds the optimized model with important constraints based on the busy and fallow period, providing a scientific calculation basis for the crosswalk width values.