ROAD GRADIENT RECORD SYSTEM, ROAD GRADIENT RECORD METHOD, ROAD GRADIENT RECORD PROGRAM, DRIVING SUPPORT SYSTEM, DRIVING SUPPORT METHOD, AND DRIVING SUPPORT PROGRAM

摘要

PROBLEM TO BE SOLVED: To provide a technology capable of recording accuracy of road gradient corresponding to accuracy of altitude.SOLUTION: A road gradient record system includes a road gradient calculating means which calculates road gradient of a road section based on altitude of the road section, an accuracy acquisition means which acquires accuracy of the road gradient based on inclination of the road section, and a recording means which records the road gradient and the accuracy of the road gradient corresponding to the road section in a recording medium.