Abstract: A model for calculating the delay of the drop-off vehicles at urban road drop-off area is proposed. The traffic organization modes of the independent drop-off area and the road drop-off area are analysed. The “queue up to drop off” mode process is divided into two stages, a delay model of drop-off vehicle based on queuing theory and gap theory is established, and an optimization algorithm is presented. Taking the entrance section of Anzhen Hospital in Beijing as the test object, the model is tested by VISSIM simulation software and real survey data. The influence of drop-off rate and drop-off area length on vehicles delay is analyzed. The results show that the model can predict the traffic state of the drop-off area and the drop-off vehicle delay accurately, which provides a more reliable basis for the optimal settings of urban road drop-off area.

Key words: drop-off area, delay model, drop-off behavir, VISSIM simulation, queuing theory