TRAVELING TIME ESTIMATION METHOD, TRAVELING TIME ESTIMATION DEVICE, TRAVELING TIME ESTIMATION PROGRAM MOUNTED WITH THE METHOD, RECORDING MEDIUM STORING THE PROGRAM, TRAVELING TIME PREDICTION METHOD, TRAVELING TIME PREDICTION DEVICE, TRAVELING TIME PREDICTION PROGRAM MOUNTED WITH THE METHOD, AND RECORDING MEDIUM STORING THE PROGRAM

摘要

PPROBLEM TO BE SOLVED: To precisely estimate a traveling time of a road link, and to predict a future traveling time of a road from the traffic information of the road. PSOLUTION: Coefficients of a first conversion formula for calculating a normalization link traveling time are calculated by using a relation between a calculated past link congestion level JSP(l1)/SPand a normalization link traveling time NTSP(l1)/SP(221, 222) (223). The coefficients of the first conversion formula are used as variables, and a regression formula is calculated by the mixture model of multiple regression analysis and quantification theory type I analysis (224). A calculated congestion level JSP(12)/SP(226) is applied to the regression formula, and the coefficients of a second conversion formula are calculated (225). The calculated coefficients are applied to the second conversion formula, and the estimation value of a normalization link traveling time NTSP(12)/SPis calculated (227). The estimation value of the road link traveling time is calculated based on the normalization link traveling time NTSP(12)/SP(228). The prediction value of the road link traveling time is calculated by using the traveling time estimation method. PCOPYRIGHT: (C)2009,JPO&INPIT