Train shed
A train shed is a building adjacent to a station building where the tracks and platforms of a railway station are covered by a roof. It is also known as an overall roof. Its primary purpose is to store and protect from the elements train cars not in use, The first train shed was built in 1830 at Liverpool's Crown Street Station. The biggest train sheds were often built as an arch of glass and iron, while the smaller were built as normal pitched roofs. The train shed with the biggest single span ever built was that at the second Philadelphia Broad Street Station, built in 1891. Types of train shed Early wooden train sheds The earliest train sheds were wooden structures, often with unglazed openings to allow smoke and steam to escape. The oldest part of Bristol Temple Meads is a particularly fine – and large – example, designed by Isambard Kingdom Brunel with mock-hammerbeam roof. Surviving examples include: Ashburton, Devon, England (station closed) Bo'ness, Falkirk, Scotland Frome, Somerset, England Kingswear, Devon, England Thurso, Highland, Scotland Wick, Highland, Scotland Classic metal and glass The middle of the nineteenth century saw many large stations covered by iron, steel and glass