Late-night weekday services will begin on the Dockland Light Railway on 3 October, running until 12:30am. A new signalling system will also allow the railway to treble its services on routes to and from the Isle of Dogs. The SELTRAC system will enable up to 45 trains to run on the network at the same time, rather than 15. Brian Abbott, a spokesman, said he did not expect the new system to be operational until next spring or early summer. A weekend service is also expected by next summer on the Bank to Island Gardens route, and the Stratford to Island Gardens line. For the past five years passengers have only been able to use the railway until 9:30pm because of engineering work. Mr Abbott said SELTRAC would increase passenger carrying capacity from 7,500 people in a peak hour to 24,000.