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
London Underground anagram map London Underground anagram map London Underground anagram map is a parody map of the London Underground with the station and line names replaced with anagrams. The anagram map was circulated on the web in February 2006. The map was featured on thousands of blogs before a Transport for London lawyer requested that the map be removed. It inspired some people to create anagram versions of their hometown's metro system with similar legal repercussions. The fact that it was appreciated internationally, despite some not knowing the stations behind the anagrams, is a recognition of Harry Beck's iconic Tube map design. The