The purpose of the present invention is to suppress travel of a mobile body, reflective of the intentions of a passenger, in a mobile body for which travel is suppressed on the basis of a detected object around the mobile body, in order to reduce collisions between the mobile body and a detected object around the mobile body. In the present invention, a control device of an electric wheelchair is provided with: a standard suppression region setting unit that sets a standard suppression region to serve as a standard, the standard suppression region being a suppression region in which travel of the electric wheelchair is suppressed when a detected object detected by a detecting device is positioned within the region； and a reduced suppression region setting unit that sets, on the basis of an intention of the passenger or the type of a detected object located in a peripheral region, which is a region on both sides of a predicted travel region of the electric wheelchair 1, a reduced suppression region, which is a suppression region that has been reduced in size, in respect to the standard suppression region set by the standard suppression region setting unit.
