The program and travel time prediction program was implemented medium storing the program and travel time estimates program was implemented travel time estimation method, travel time estimation apparatus, its way, travel time prediction method, travel time prediction apparatus and method thereof medium which stores

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