London Underground infrastructure Tube Programme, investigating replacing the trains for the Bakerloo and Piccadilly lines, is looking for trains with better energy conservation and regenerative braking. The Underground serves 270 stations. Fourteen Underground stations are outside Greater London, of which five (Amersham, Chalfont & Latimer, Chesham, and Chorleywood on the Metropolitan line and Epping on the Central line) are beyond the M25 London orbital motorway. The longest distance between two stations is between Chalfont & Latimer and Chesham on the Metropolitan line. The shortest distance between adjacent stations is the between Leicester Square and Covent Garden on the Piccadilly line. The station furthest
Waltham Abbey (town) building, and sold the former building to an Evangelical Free church. Waltham Abbey is served by Waltham Cross Station on the British Rail network, Theobald's Grove and Chingford stations on the London Overground network, and its nearest London Underground station is Loughton, served by the Central Line. Waltham Abbey is located on the M25 London Orbital Motorway, allowing efficient transport by motor vehicle around London. Several bus routes are operated in Waltham Abbey, some of which were originally operated by London Transport. Waltham Abbey (town) Waltham Abbey is a suburban market town in the Epping Forest District of Essex, the