🌐EnglishEnglishBahasa IndonesiaFrançaisItalianoไทย中文EntityQ4971266· pop 6· linked from 206 articlesBritish absolute block signallingsignalling scheme designed to ensure the safe operation of a railway by allowing only one train to occupy a defined section of track (block) at any timeConnectionsJohn SaxbyEntityInternational Standard Book NumberEntityCategoriesRailway signalling block systemsRailway signalling in the United Kingdom