SHIELDING DETECTION DEVICE AND COMPUTER READABLE MEDIUM

A shielding detection unit () detects one or more shielded sections in which a road surface of a target road, on which a measuring vehicle has traveled, has not been measured, based on three-dimensional point group data indicating a three-dimensional coordinate value of each measurement spot that has been measured by a laser scanner mounted on the measuring vehicle. A result display unit () generates a target road map and displays the target road map, the target road map indicating the target road and indicating the one or more shielded sections in a manner to distinguish the one or more shielded sections from each unshielded section in which the road surface of the target road has been measured.