Method and arrangement for the operation of a railroad line

A configuration for operation of a railroad line, the configuration comprising:

• at least one signal box configured to preset line-block-section-specific light signal information items, said at least one signal box forming radio messages including line-block-section-specific data and associated light signal information items;
• a line side intermittent automatic train control system disposed at line block section ends and having a vehicle computer with signaling which is safe;
• a rail vehicle having rail-vehicle radio receivers configured to receive the radio messages;
• and
• said rail vehicle having a comparison device configured to determine current light signal information items based on a comparison of the line-block-section-specific data items in the radio messages with line-block-section-specific data items transmitted to said rail vehicle from said intermittent automatic train control system as said rail vehicle passes, said rail-vehicle comparison device having a radio computer with signaling which is not safe, being connected to said vehicle computer.