A transport vehicle system, comprising: a travel path including at least one of a branching portion and a confluence portion; travel vehicles each configured to travel along the travel path in one direction and transfer an article with respect to individual placement tables provided along the travel path; and a travel vehicle controller configured to control travel of each of the travel vehicles in accordance with a transport command, wherein the travel vehicle controller includes a travel control portion configured to search for a travel route along which each of the travel vehicles is caused to travel to a predetermined one of the placement tables included in the transport command and to cause each of the travel vehicles to travel in accordance with the travel route based on map information containing information on the travel path and the placement tables when the transport command is issued, the map information further contains information on a specified point provided so as to correspond to at least one of the branching portion and the confluence portion, and the travel control portion performs one-way travel control to cause each of the travel vehicles to travel in the one direction and performs reverse travel control that sets a reverse travel zone in which each of the travel vehicles is caused to travel in a direction opposite to the one direction from or to the specified point as at least a portion of the travel route and causes each of the travel vehicles to travel in the direction opposite to the one direction in the reverse travel zone so that each of the travel vehicles is caused to travel in accordance with the travel route. a travel path including at least one of a branching portion and a confluence portion; travel vehicles each configured to travel along the travel path in one direction and transfer an article with respect to individual placement tables provided along the travel path; and a travel vehicle controller configured to control travel of each of the travel vehicles in accordance with a transport command, wherein the travel vehicle controller includes a travel control portion configured to search for a travel route along which each of the travel vehicles is caused to travel to a predetermined one of the placement tables included in the transport command and to cause each of the travel vehicles to travel in accordance with the travel route based on map information containing information on the travel path and the placement tables when the transport command is issued, the map information further contains information on a specified point provided so as to correspond to at least one of the branching portion and the confluence portion, and the travel control portion performs one-way travel control to cause each of the travel vehicles to travel in the one direction and performs reverse travel control that sets a reverse travel zone in which each of the travel vehicles is caused to travel in a direction opposite to the one direction from or to the specified point as at least a portion of the travel route and causes each of the travel vehicles to travel in the direction opposite to the one direction in the reverse travel zone so that each of the travel vehicles is caused to travel in accordance with the travel route. travel vehicles each configured to travel along the travel path in one direction and transfer an article with respect to individual placement tables provided along the travel path; and a travel vehicle controller configured to control travel of each of the travel vehicles in accordance with a transport command, wherein the travel vehicle controller includes a travel control portion configured to search for a travel route along which each of the travel vehicles is caused to travel to a predetermined one of the placement tables included in the transport command and to cause each of the travel vehicles to travel in accordance with the travel route based on map information containing information on the travel path and the placement tables when the transport command is issued, the map information further contains information on a specified point provided so as to correspond to at least one of the branching portion and the confluence portion, and the travel control portion performs one-way travel control to cause each of the travel vehicles to travel in the one direction and performs reverse travel control that sets a reverse travel zone in which each of the travel vehicles is caused to travel in a direction opposite to the one direction from or to the specified point as at least a portion of the travel route and causes each of the travel vehicles to travel in the direction opposite to the one direction in the reverse travel zone so that each of the travel vehicles is caused to travel in accordance with the travel route.