Circle line (London Underground) and the C Stock trains have recently been replaced by new seven-car S Stock trains, in a programme completed in 2015. In 1863 the Metropolitan Railway, the world's first underground railway, opened in London between Paddington and Farringdon, connecting the Great Western Railway's relatively remote terminus at Paddington with Euston and King's Cross stations and the City, London's financial heart. In the same year a select committee report recommended an 'inner circle' of railway lines connecting the London termini that had been built or under construction. In the next year the Metropolitan District Railway (commonly known as the District Railway)
London Borough of Havering Romford, Gidea Park and Harold Wood. There is also a branch line from Romford to Upminster which is currently operated by London Overground. There are proposals for transport improvements in the south of the borough where the population is expected to rise. With the introduction of Crossrail there will be an increased service from Romford to both Central London and Reading. In March 2011, the main forms of transport that residents used to travel to work were: driving a car or van, 31.8% of all residents aged 16–74; train, 6.3%; underground, metro, light rail, tram, 6.3%; bus, minibus or coach,