Abstract: A control device acquires information regarding a communication quality of a base station that performs a predetermined type of communication, and performs a control for moving a mobile base station to a position associated with the base station in a case where it is determined that the communication quality is lower than a predetermined communication quality.

Abstract: A control device of a mobile object is configured to execute a function using communication. The control device includes an acquisition unit configured to acquire communication quality on a planned movement route of the mobile object, and a determination unit configured to determine, based on the acquired communication quality, whether or not the planned movement route includes a position that does not satisfy communication quality required for execution of the function.

Abstract: An anti-slipping agent for a frozen road surface is provided by crushing a stone having flat-crushability such as black slate into flat-crushed pieces of a required grain size. Furthermore, a method for spreading an anti-slipping agent for a frozen road surface is provided in which the anti-slipping agent for a frozen road surface is heated and then spread onto the frozen road surface. Further an apparatus is provided for spreading an anti-slipping agent for a frozen road surface onto a frozen road surface, which has a hopper, a heater and a spreader.