A vehicle dispatch device in a combined passenger and freight transport system acquires a delivery request including a collection point and a delivery point of the package and a vehicle dispatch request including a boarding point and a drop-off point of the passenger, detects a candidate vehicle as a candidate of a service vehicle for transporting the package and the passenger, based on the collection point or the boarding point, calculates a candidate route where the candidate vehicle goes via the collection point and the delivery point when the passenger is not on board, for the detected candidate vehicle, sets the calculated candidate route, as a traveling route for transporting the package and the passenger, and dispatches the candidate vehicle of the candidate route set as the traveling route, as the service vehicle.