CRANE

A crane creates a 3D map on the basis of three-dimensional information acquired by a three-dimensional information obtaining section that is provided on a boom. The three-dimensional information obtaining section: is configured to be capable of accumulating acquired three-dimensional information and to be capable of changing a measurement direction, a measurement range, and a measurement density; and creates the 3D map by superimposing accumulated three-dimensional information. When an operation signal for a swivel operation for a swivel base, a hoisting operation for the boom, or an extension/retraction operation for the boom has been detected, on the basis of the movement direction and movement speed of the boom as calculated from a detected value for the operation signal, the three-dimensional information obtaining section: changes the measurement direction; and narrows the measurement range and increases the measurement density as compared to when the operation signal has not been detected.