Patent ID: 7840331

Claim:
A travel support system comprising: a roadside apparatus; and a plurality of equipped vehicles, each equipped vehicle of said plurality of equipped vehicles being equipped with a respective communication module for communicating with another vehicle, wherein said roadside apparatus includes: an equipped-vehicle detecting unit operable to detect a presence and a position of each equipped vehicle of said plurality of equipped vehicles; a non-equipped-vehicle detecting unit operable to detect a presence and a position of a non-equipped vehicle that is not equipped with a respective communication module; an information-holding vehicle identifying unit operable to identify an information-holding vehicle, which is one equipped vehicle of said plurality of equipped vehicles detected by said equipped-vehicle detecting unit and which is for holding non-equipped-vehicle information including the position of the non-equipped vehicle, the information-holding vehicle being identified based on (i) the position of each equipped vehicle of said plurality of equipped vehicles detected by said equipped-vehicle detecting unit, and (ii) the position of the non-equipped vehicle detected by said non-equipped-vehicle detecting unit; and a non-equipped-vehicle information providing unit operable to provide the non-equipped-vehicle information to the information-holding vehicle identified by said information-holding vehicle identifying unit, and wherein the information-holding vehicle holds the non-equipped-vehicle information provided by said non-equipped-vehicle information providing unit of said roadside apparatus, and provides the held non-equipped-vehicle information to another equipped vehicle of said plurality of equipped vehicles via the respective communication module included therein.