Terminal device, rear server, vehicle mounted transponder, judgment system, judgment method and program

摘要

The terminal device is provided with a candidate acquiring section for acquiring the reverse travel candidate information including the vehicle position information and the travel direction information, if it is determined that the vehicle may be running backward, if the candidate decision section for judging whether or not the vehicle is running in the reverse direction may be reversed A rear server for judging whether or not the vehicle is running backward based on the reverse travel candidate information is provided with a candidate notification section for notifying the reverse travel candidate information.