PROBLEM TO BE SOLVED: To provide a travel instruction device for instructing to travel in a manner in which a vehicle body part of a vehicle is along a travel path, which allows a user to intuitively confirm a state in which the vehicle is at a proper position and in a proper orientation for starting a travel.SOLUTION: A remote operation device 46 comprises: a position information acquisition part 56； a route start information acquisition part 58； and a control part 50. The position information acquisition part 56 can acquire current position information which indicates a current position of a travel machine body. The route start information acquisition part 58 can acquire start position information which indicates a start position of a work route where the travel machine body travels. The control part 50 can instruct travel of the travel machine body along the work route. The control part 50 displays the current position of the travel machine body and the start position in a different display mode on a display 37, when the current position of the travel machine body and the start position are different.SELECTED DRAWING: Figure 3
