Radio-wave sensor installation assistance device, computer program, and radio-wave sensor installation position determination method

A non-transitory computer readable storage medium storing a computer program that causes a computer to assist in installation of a radio-wave sensor, the computer program causing the computer to function as:

• a target position determination unit configured to determine a target position to be irradiated with a radio wave emitted from a radio-wave sensor, in an image including a crosswalk;
• a candidate position designation unit configured to receive, from a user, designation of a candidate position that is a candidate for an installation position of the radio-wave sensor, in the image;
• and
• a display control unit configured to cause a display device to display a radio-wave irradiation range of the radio-wave sensor so as to be superimposed on the image, the radio-wave irradiation range being determined based on the determined target position and the designated candidate position, wherein
• the candidate position designation unit is able to receive, from the user, an instruction of a movement of the designated candidate position, and
• when the candidate position designation unit has received the instruction of the movement, the display control unit changes the shape of the radio-wave irradiation range according to the instructed movement of the candidate position, with the target position being fixed.