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London & North Western Railway Society
Glossary for the LNWR Society

Glossary Results for Word "Permissive Block Working"

Permissive Block Working A system of train operation where, under special conditions, a train may proceed with great caution into a block sectionExplain 'Block Section' already occupied by another train. This system would be used at terminus stationsExplain 'Terminus' to allow a locomotive to enter a platform already occupied by coaching stock, but would normally be used on through lines only when one goods train is following another. (see also absolute blockExplain 'Absolute Block System').