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 Hall Upminster Hall Upminster Hall is a historic house in Upminster, London, England. It is now the clubhouse of the Upminster Golf Club. King Harold II gave the manor of Upminster Hall to the abbotts of Waltham Abbey in around the year 1050. The present house, which dates from circa 1500, remained in the ownership of the abbey until the Dissolution of the Monasteries in 1536, when King Henry VIII gave it to Thomas Cromwell. It was then occupied by the Latham family from 1543 until it passed to Edward Noel, later 1st Earl of Gainsborough, in 1677. It was then