everything about rail system…

Railway Signalling Terms

This page¬†will be continuously updated… Absolute Block A system of controlling rail traffic, where (under normal operations) only one train is allowed in the Block Section at a time. Proof … Continue reading

Track Circuit

Most railroads use track circuits to determine which sections of track are occupied by trains. These devices are actually fairly simple in design, and have been in use since 1872. … Continue reading