INFORMATION DISPLAY DEVICE AND CONTROL METHOD

An information display device () includes a display device () that displays a route list and a control device () that controls the display device (). Upon receipt of an instruction from a user, the control device () switches one simplified route diagram to another simplified route diagram, the one simplified route diagram including the names of two or more safety-zone facilities that are located closest to the current location, the other simplified route diagram including the name of a caution-zone facility that is located on the route ahead of the safety-zone facilities.