Abstract: An improved railroad signal system is described in which a train is allowed to approach a block even if a red light is activated for the block. A white numbered light is activated indicating the maximum permissible speed of the train. The system includes a home clearing relay and a station timing relay which are activated by two separate circuits thereby eliminating a wire loop.

Abstract: This invention relates to a roadside emergency system. The systems includes a roadside station which has a telephone unit similar to a mobile telephone set for a cellular mobile telephone system. When the unit is activated, it automatically generates radio signals which cause a mobile telephone switching office to dial up an emergency station (such as a highway police station). The office also automatically establishes a channel for voice communication between the roadside station and the emergency station. The roadside station is further provided with a back-up battery and an alarm to prevent tampering.