METHOD AND DEVICE FOR ESTIMATING TRAVELING TIME, TRAVELING TIME ESTIMATION PROGRAM MOUNTED WITH THE METHOD, MEDIUM STORING THE PROGRAM, METHOD AND DEVICE FOR PREDICTING TRAVELING TIME, TRAVELING TIME PREDICTION PROGRAM MOUNTED WITH THE METHOD, AND MEDIUM STORING THE PROGRAM

摘要

PPROBLEM TO BE SOLVED: To accurately estimate a road link traveling time and to predict a future traveling time of a road from congestion information of the road. PSOLUTION: A relation between calculated past link congestion degree JSP(l1)/SPand link traveling speed VSP(l1)/SP(621, 622) is used to calculate factors of a first conversion equation for calculating a link traveling speed (623). A regression equation is determined by a mixed model of multiple regression analysis and quantification theory I analysis with each factor of the first conversion equation being a variable (624). A calculated congestion degree JSP(l2)/SPof a traveling estimation object (626) is applied to the regression equation to calculate factors of a second conversion equation (625). The calculated factors are applied to the second conversion equation to calculate an estimation value of link traveling speed VSP(l2)/SPof the traveling time estimation object (627). Based on the link traveling speed VSP(l2)/SP, an estimation value of the road link traveling time is calculated (628). The above traveling time estimation method is used to calculate a prediction value of the road link traveling time. PCOPYRIGHT: (C)2011,JPO&INPIT