Central line (London Underground) that the transport benefits of a Park Royal station on the Central line are not sufficiently high to justify the costs of construction. Central line (London Underground) The Central line is a London Underground line that runs through central London, from , Essex, in the north-east to and in the west. Coloured red on the Tube map, the line serves 49 stations over , which makes it the longest Tube line. It is also one of only two lines on the Underground network to cross the Greater London boundary, the other being the Metropolitan line. One of London's deep-level railways,
Guadalajara light rail system the large numbers of users of the rail system, there are plans to extend Line 2 to the west and to build a third line. Line 1 runs underground in the city center, but runs "at grade" north and south of the city center, and its surface sections include several level crossings, protected by crossing gates. The station platforms accommodate trains composed of no more than two cars. Line 2 is entirely underground except for a non-passenger section at its east end, connecting the last station to the maintenance facility. Its stations are long enough to accommodate trains of up