London Underground at +420 V, giving a potential difference of 630 V. On the sections of line shared with mainline trains, such as the District line from East Putney to Wimbledon and Gunnersbury to Richmond, and the Bakerloo line north of Queen's Park, the centre rail is bonded to the running rails. The average speed on the Underground is 20.5 mph. Outside the tunnels of central London, many lines' trains tend to travel at over 40 mph in the suburban and countryside areas. The Metropolitan line can reach speeds of 62 mph. The London Underground was used by 1.379 billion passengers in
Termini (Rome Metro) Termini (Rome Metro) Termini is an underground station of the Rome Metro. The station was inaugurated on 10 February 1955 as a station on Line B, and later became an interchange with Line A. The station is found in Piazza dei Cinquecento, under the Termini rail terminal. Together, the two stations form the main public transport hub in the city. Termini is currently the only station in the Rome Metro system to serve both Lines A and B. However, when Line C is completed, Termini will still be a transfer point between Lines A and B but will no longer