service lives. Bus garages will generally have large areas unobstructed by supporting columns as well as high roofs, especially for storage of double-decker buses. Recently in London, the transfer of routes from double-decker operation to articulated buses has caused problems at some garages that were found to be too small to accommodate all the replacement buses, requiring splitting of allocations, or the building of new garages. Some bus companies in the UK make use of outstations (or out-stations) as an additional bus storage facility. These are generally outdoor parking locations, where buses are stored overnight or between peaks, which are more conveniently located for operations, reducing dead mileage. There does not appear to be a universal definition of an outstation, but it seems agreed that there are no maintenance facilities at a bus outstation. Largest The largest bus depot in the world is Millennium Park Bus Depot In Delhi India, built for the Commonwealth Games in 2010. Notes See also Bus station Bus terminus Railway workshop References