Processor unit mounted on front vehicle and processor unit mounted on following vehicle

摘要

It is an object to obtain a train-of-vehicle travel support device which enables a train-of-vehicle travel of a plurality of vehicles (10a, 10b, 10c) even on a running road in which no magnetic marker is embedded. The train-of-vehicle travel support device comprises a sensor unit (1) obtaining road line shape data of a feature on a road surface, a processor unit (11) obtaining running control data based on comparison of the road line shape data obtained by the sensor unit (1) and reference data which have been previously stored, and an inter-vehicle communication device (3) transmitting wirelessly the running control data obtained by the processor unit (11) to a following vehicle.