Road travel speed estimation device and road travel speed estimation program

摘要

PROBLEM TO BE SOLVED: To provide a configuration for estimating information on an actual travelable speed of a road in which GPS locus data does not exist or GPS locus data is scarce. SOLUTION: This is a road travelable speed estimation device for estimating the travelable speed of a target road, and has a road feature information acquisition unit for acquiring road feature information representing the characteristics of the target road, and a road feature. Based on the information, identify at least one other road whose characteristics are similar to the target road and for which the travelable speed has already been set, and the approximation including at least the travelable speed information and position information for the identified other roads. For the approximate road information extraction unit that extracts road information and at least one or more other roads that extract approximate road information, the closer the distance to the target road, the greater the weighting on the travelable speed. It is provided with a travelable speed estimation unit that estimates the travelable speed of the target road. [Selection diagram] Fig. 1