The invention belongs to the technical field of
public transport dispatching and optimization, and especially relates to a BRT (
bus rapid transit) combined dispatching method capable of achieving variable
bus departure intervals. The method comprises the steps: determining the total number of stops and the total number of
bus departure times, and obtaining the driving time of vehicles among stops, passenger flow information, the get-on time of passengers, the get-
off time of passengers, and stopping time of vehicles; obtaining the number of get-on and get-off passengers at each stop, so as to determine the type of the stop as a BRT stop or common stop; taking a combination mode and a departure interval as decision variables; building a bus dispatching model, calculating the
stop time and the number of get-on and get-off passengers of each vehicle at each stop, solving a target function expression, i.e., calculating the mean
waiting time of passengers, the mean on-bus time of passengers, and the mean
seating capacity of the vehicles; solving and obtaining a dispatching scheme through employing a
particle swarm optimization algorithm, wherein the mean
waiting time of passengers and the mean on-bus time of passengers are as short as possible in the scheme, the mean
seating capacity of the vehicles are as large as possible in the scheme, and the scheme comprises a departure interval and a departure type.