Server, on-board device, vehicle, non-transitory storage medium storing program, and method for providing information

A non-transitory storage medium storing a program, the program being executable by a mobile terminal and configured to cause the mobile terminal to perform a process, the process including:

• receiving brightness information of a road on an image capture date and time from a server storing the brightness information, the brightness information being detected based on a captured image including a sidewalk and a position of a part of the sidewalk shaded in daytime on a condition that an image of a person wearing a predetermined tool is detected from the captured image;
• and
• outputting the brightness information, wherein
• the brightness information contains at least one of information on the position of the part of the sidewalk shaded in the daytime and information on a position of a part of the sidewalk lit by a light source in nighttime.

A method for providing information, the method comprising:

• receiving information on an image capture date and time of a captured image including a sidewalk;
• storing brightness information of the sidewalk on the image capture date and time, the brightness information being detected based on the captured image;
• sending the brightness information to a mobile terminal;
• and
• detecting a position of a part of the sidewalk shaded in daytime on a condition that an image of a person wearing a predetermined tool is detected from the captured image, wherein
• the brightness information contains at least one of information on the position of the part of the sidewalk shaded in the daytime and information on a position of a part of the sidewalk lit by a light source in nighttime.