Escalator 14


Escalator 14 :

Safety:(1. 1. 1) Lessons of the King’s Cross fire: Crisscross layout of escalator at Mahboonkrong Center, widely known as the MBK Center, in Bangkok. Such layouts are used to minimize structural space requirements by "stacking" escalators that go in one direction. The King's Cross fire of 1987 illustrated the demanding nature of escalator upkeep and the devices’ propensity to collect “fluff” when not properly maintained. In the official inquiry that followed, the Fennell Report, it was determined that the fire started slowly, smoldered virtually undetected for a time, then exploded into the ticketing hall above in a phenomenon known as the “trench effect". In the escalators’ undercarriage, approximately 8,800 kilograms (19,000 lb) of accumulated detritus acted as a wick to a neglected buildup of interior lubricants; wood veneers, paper and plastic advertisements, solvent-based paint, plywood in the ticket hall, and melamine combustion added to the impact of the calamity. As a result of the report, older wooden escalators were removed from service in the London Underground. Additionally, sections of the London Underground that were actually below ground were made nonsmoking; eventually the whole system became a smoke-free zone

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