Traffic information retrieval systems and traffic information retrieval program

摘要

PROBLEM TO BE SOLVED: To perform retrieval corresponding to the date of retrieval by also performing generation management corresponding to the date regarding the name of a station, the name of a route and fixed section data possessed by a client side.;SOLUTION: In the system, the client device 20 is provided with retrieval local data 21 including data based on a predetermined operation route and data based on the stations provided on the operation route; a retrieval local data renewal history based on the renewal history of the retrieval local data 21; a retrieval condition control means 24 for receiving a signal based on the retrieval condition including the retrieval date and the station inputted from an input device 104 by a user; and a local data processing means 24 for downloading the retrieval data responded to the renewal date included in the retrieval data renewal history 12 and not included in the retrieval local data renewal history 22 from a server device 10 and inserting the data based on the downloaded retrieval data to the retrieval local data 21.;COPYRIGHT: (C)2005,JPO&NCIPI