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
Line 1 (Ningbo Rail Transit) District. Then it passes Ningbo East New Town and then go overground. Finally the metro line extends into Beilun District and ends there. The section between Gaoqiao and Ningbo East New Town has been constructed as the first phase which started service on May 30, 2014. The rest section from Ningbo East New Town to Beilun District opens on March 19, 2016. The line has 28 stations in total, of which 12 are elevated and the rest are underground. Till June 2014, 20 stations of Line 1 are operational. Line 1 (Ningbo Rail Transit) Line 1 of Ningbo Rail Transit