TRAVEL-TIME PREDICTION APPARATUS, TRAVEL-TIME PREDICTION METHOD, AND TRAFFIC INFORMATION PROVIDING SYSTEM AND PROGRAM

摘要

PROBLEM TO BE SOLVED: To provide a travel-time prediction apparatus capable of making a mid-term prediction of travel time accurately by combining present conditions and statistical information.

SOLUTION: The travel-time prediction apparatus accepts a travel-time transition pattern corresponding to a specified link and day type from a travel-time transition pattern database DB 104 storing travel-time transition patterns obtained by statistically processing past time-series data of each link according to type of data, calculates conversion parameters of a travel-time transition pattern for which an error between the travel-time transition pattern and a sequentially input travel-time time-series data will be reduced, and then makes a prediction using a prediction function obtained by converting the travel-time transition pattern by the calculated conversion parameters. The calculated predicted value and the conversion parameters are distributed as traffic information.

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