A Study of Bus Coordinated Departure Model

The bus waiting times consist of waiting times at departure stations and transfer times at transfer sta‐tions .The transit coordinate scheduling model (CSM) ,which only focuses on the shortest transfer times ,cannot reduce the waiting times at departure station .This study proposes the concept of bus coordinated departures and its require‐ments .Based on classifications of passenger characteristics ,the waiting times of different types of passengers at the de‐partures and transfer stations were analyzed in order to develop the proposed model with a target of the shortest waiting time .Because of many variables in the model ,genetic algorithm is used to search the solution .The effectiveness of the model was validated by a case study .The results show that CDM will provide shorter waiting times than CSM and the waiting time decreases 15 .2% .