A system for visually assisting an operator of a railcar mover that provides a visual display and a pair of alignment lines superimposed on the image of the display to assist the operator to properly align a railcar mover to the railroad rails when transitioning from driving on the road to driving on the railroad rails. The system further includes a set of cameras positioned around the railcar mover and a processor, which can create a composite image of a top view of the railcar mover to further assist the operator position the railcar mover properly.

A route control program generation device constructs a group of a plurality of environment models with different states in which the states of the plurality of environment models are changed in various manners. The environment model is constituted by a first moving body that is a control target and is present on a track divided into a plurality of sections, and a second moving body other than the control target, and searches for a state transition order where it is possible to achieve a request for causing the first moving body to move to a prescribed section by causing the first moving body to move to a destination while causing a state of one environment model to transition to a state of another environment model in response to the request. The route control program generation device constructs the group to match a prescribed restriction condition based on the restriction condition.

A test support method includes a step of obtaining a pre-change image and a post-change image to be displayed on a monitoring and control system, a step of extracting, from the post-change image, multiple symbols that have changed from corresponding symbols in the pre-change image, a step of adding order information to the multiple symbols extracted, and a step of outputting a test image in which the order information is added to the multiple symbols.