Metropolitan line the top green light over a yellow light, and clear two green lights. The Metropolitan line's suburban rail character opposed to other London Underground lines is also shown by the long distances between stops. Eight of the top 10 furthest apart stations on the Underground are on the Metropolitan line. The section between Chalfont & Latimer and Chesham is the longest at , whilst the Finchley Road to Wembley Park section is the second longest, and Rickmansworth to Chorleywood the fourth longest overall. The Metropolitan line is the only London Underground line to operate an express service. Designed for commuters
Attacks on the London Underground Attacks on the London Underground This is a list of deliberate attacks on the infrastructure, staff or passengers of the London Underground that have caused considerable damage, injury or death. On 30 October 1883, two bombs planted as part of the Fenian dynamite campaign exploded on the "Inner Circle". The first bomb, planted on a train, exploded near Paddington (Praed Street) station damaging the train it was on and a passing train along with part of the station and the signal box. Sixty-two passengers were injured. At the same time, the second bomb exploded in the tunnel between Charing Cross