To quickly assist safe alighting, when arriving at an object station, by transmitting position information and the object station of oneself in a train to a railroad company by using a portable terminal possessed by a user.

A user terminal is carried by the user desiring alighting assisting service. A receiver is installed in the vicinity of a boarding-alighting port of respective vehicles of the train, and detects the user terminal. A receiver discriminating device communicates with the receiver when the receiver detects the user terminal, and recognizes a location position of the receiver. A railroad company server receives a notice of the location position of the receiver from the receiver discriminating device, and accepts an provide of the alighting assisting service from the user terminal, and grasps an alighting station of the user. A station inside terminal exists in the alighting station of the user, and receives the notice of the location position of the receiver from the railroad company server, and informs a user-locating vehicle and a user-alighting boarding-alighting port to personnel of assisting alighting for the user based on the location position of the receiver.