The present disclosure refers to a travel support system including a work vehicle occupied area managing unit (60) that manages a virtual area occupied by a work vehicle when the work vehicle travels in a work field, by separating the virtual area into a vehicle body (1) occupied area VA occupied by a vehicle body (1) and a work device occupied area WA occupied by a work device, a work field managing unit (56) that manages obstruction information including a position and a size of an obstruction in the work field, an own position calculation unit (54) that calculates an own position, and a travel support unit (55) that supports the travelling of the work vehicle, based on the obstruction information, the own position, and the area occupied by the work vehicle. Further, a work vehicle is provided.