Data structure of the road network data, road network data generating apparatus, road network data generated for the program, and, route guidance devices

摘要

PROBLEM TO BE SOLVED: To provide a data structure of road network data free from impairing compatibility with conventional route guidance devices based on a principle inhibiting transfer across links, and to provide a preparation device for such road network data, a program for preparing such road network data, and a route guidance device efficiently utilizing such road network data.;SOLUTION: Within a lane change admissible section 20u, the section is expressed by one lane change admissible section link 211 regardless of presence/absence of a plurality of lanes, and a plurality of links 111, 121, 131 per lane of the lane change prohibition section 10u are integrated into one at a beginning node 210 and branched into a plurality of links 311, 321, 331 per lane at a termination node 220.;COPYRIGHT: (C)2010,JPO&INPIT