Just what do all of the strange railroad terms mean, you will find their meaning and definitions here.
Below are the Definitions showing in the 7th Edition of GCOR Effective April 1, 2015. ABS See Automatic Block Signal System. Absolute Block A length of track that no train is permitted to enter while the track is occupied by another train. Absolute Signal A block or interlocking signal without a number plate, or designated by […]