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
Upminster connected settlement of Cranham and the rural outlier of North Ockendon. In 2001 the population of Upminster ward was 12,674 and Cranham ward was 12,242, giving a total population of 25,098. 80.95% in Upminster and 81.73% in Cranham report their religion as Christian, compared to 76.13% for Havering, 58.23% in London and 71.74% in England. 10.08% in Upminster and 10.46% in Cranham report having no religion, compared to 13.18% in Havering, 15.76% in London and 14.59% in England. With a black and minority ethnic population of 3% in 2001, Cranham and Upminster wards have the lowest Simpson index for ethnic