Construction workers rest in front of billboards promoting Crossrail's new Queen Elizabeth rail line, the capital's newest  on 3rd September 2018, at Liverpool Street in London, England. Crossrail's Elizabeth Line is a 118-kilometre (73-mile) railway line under development in London and the home counties of Berkshire, Buckinghamshire and Essex, England. Crossrail is the biggest construction project in Europe and is one of the largest single infrastructure investments ever undertaken in the UK - a£15bn transport project that was due to open in December 2018 but now delayed to autumn 2019.
{}