1. A system for transmitting location information from a transmitting apparatus to a receiving apparatus, the system comprising: the transmitting apparatus that has a first digital map and transmits the location information which indicates a road segment on the first digital map to the receiving apparatus; wherein the location information including: coordinates information which indicates a list of coordinates of points on the road segment, relative information which indicates a location on the road segment, the receiving apparatus that has a second digital map which contains a different error from the first digital map, wherein after the receiving apparatus receives the location information from the transmitting apparatus, the receiving apparatus identifies the road segment on the second digital map by using the coordinates information included in the location information, and identifies the location on the road segment on the second digital map by using the relative information included in the location information.