TRAVELLING CONTROL APPARATUS

A travelling control apparatus includes a preceding vehicle information acquiring unit acquiring a preceding vehicle travelling speed pattern indicating a travelling speed change of a preceding vehicle; an energy efficiency index calculation unit calculating an energy efficiency index indicating a degree of improvement in an energy efficiency of the vehicle, in the case where the vehicle travels based on an own vehicle travelling speed pattern indicating a travelling speed change of the vehicle when the vehicle travels tracking the preceding vehicle; a compatibility index calculation unit calculating a compatibility index indicating a degree of compatibility between the vehicle and a following vehicle based on a travelling speed of the vehicle and the following vehicle; and a control unit performing a coasting travel determination determining whether to perform a coasting travel of the vehicle based on a degree of the energy efficiency index and the compatibility index.