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概要（英語）
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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.
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