Degradation display system, degradation display method, and recording medium

A degradation display method comprising:

• acquiring a degradation index indicating a degradation state of a road section;
• changing display form of a map in accordance with a display range and a scale of the map;
• superimposing degradation information on the map, the degradation information based on the degradation index of an area on the map or the road section in the area;
• superimposing, for each area, the degradation information in a display form corresponding to a degree of the degradation index of the area in a case that the map is at a first scale;
• and
• superimposing, for each road section, the degradation information in a display form corresponding to a degree of the degradation index of the road section in a case that the map is at a second scale larger than the first scale.

A non-transitory recording medium that stores a program causing a computer to perform:

• acquiring a degradation index indicating a degradation state of a road section;
• changing display form of a map in accordance with a display range and a scale of the map;
• superimposing degradation information on the map, the degradation information based on the degradation index of an area on the map or the road section in the area;
• superimposing, for each area, the degradation information in a display form corresponding to a degree of the degradation index of the area in a case that the map is at a first scale;
• and
• superimposing, for each road section, the degradation information in a display form corresponding to a degree of the degradation index of the road section in a case that the map is at a second scale larger than the first scale.