Determining location of bus and path planning considering bus delay

Route bus system is one of fundamental transportation device for aged people and students, and has an important role in every province. However, passengers decrease year by year. The reasons include the spread of private cars and depopulation. Therefore we have developed the shortest path searching system called "BUS-NET" as a web application to sustain the public transport. The path planning system that is one of the functions of a previous Bus-Net does not consider bus delay. Therefore, passengers may be unable to get on a target bus at the transfer when a bus is delayed. So the path planning system considering bus delay is necessary. To provide this function, we must estimate a bus delay. And to estimate the bus delay, we develop a system to determine the location of a bus. In this paper, we describe methods for the path planning considering bus delay and determining the location of the bus.