Upminster Bridge tube station typical off-peak service from the station is twelve District line trains per hour to Upminster and twelve to Earl's Court, of which six continue to Ealing Broadway and six continue to Richmond. At peak periods the number of trains per hour increases to fifteen and some trains continue from Earl's Court to Wimbledon. Services towards central London operate from approximately 05:00 to 23:30 and services to Upminster operate from approximately 06:00 to 01:30. The journey time to Upminster is two minutes; to Barking is approximately 20 minutes, and to Tower Hill is approximately 42 minutes. Since 2006, the station has
London Underground rolling stock numbering and classification London Underground rolling stock numbering and classification Rolling stock used on the London Underground and its constituent companies has been classified using a number of different schemes. This page explains the principal systems. The numbering and classification of electric multiple unit stock on the London Underground is usually related to the type of line that the trains are used on. There are two distinct types of line: 'Sub-surface' lines (earlier lines built on the cut-and-cover method, which use trains of similar size to those on the national railway network), and 'Tube' lines (deep-level lines, built to a more restricted size).