Abstract: A message that contains train on-track information and reservation information of a train detection section and direction information and reservation information of a switch is circulated among a train detector, switch machine, signal device controller and a route indicating device. Via a signaling message, the train detector transmits the train detection result to the signal device controller and the route indicating device, the switch machine can transmit switch condition to the signal device controller, the route indicating device transmits route reservation to the switch machine and the signal device controller. Based on the transmitted train detection result, switch condition and route reservation condition, the signal device controller transmits travel permission or travel non-permission for the assigned route to a train.

Abstract: The invention relates to an improved block control for controlling a train safely and efficiently along a railway system. The apparatus includes a mechanism for designating a train route, a mechanism for assigning a feeder section along the designated train route to a desired substation, a mechanism for locking an assigned feeder section to a desired substation and for preventing unlocking of that assignment until predetermined conditions are met, a mechanism for designating a traveling direction of the train along the assigned feeder section, and a mechanism for controlling operation of the train along a designated control route. The invention also relates to a mechanism for enlarging a control route, a mechanism for unlocking the assigned feeder sections and substations, a mechanism for checking a determined control route, a mechanism for changing the borders of a feeder section, and a mechanism for selectively communicating received data to the correct substation to facilitate control of the train.