running tunnels. The station was not authorised by the Channel Tunnel Rail Link Act 1996 and an order under the Transport and Works Act 1992 had to be made to allow for its construction. In the centre of the station is a single-track inclined viaduct, rising to the east end along and above the length of the island platforms. This is to allow out-of-service trains to leave the station box and reach the depot at Temple Mills. Services and connections National Rail Southeastern operates all trains serving the High Speed 1 station. The full service started on 13 December 2009 using EMUs. The typical off-peak service in trains per hour is: 3 tph to London St Pancras International 1 tph to via 1 tph to Ramsgate via 1 tph to via Additional Southeastern services call at the station during the peak hours. There are one or two international trains per hour in each direction that pass through without stopping. During the 2012 Olympic Games, a service of eight trains an hour ran between St Pancras and Ebbsfleet, calling at Stratford, replacing the high speed service. Two of these would be extended to Ashford and one to Faversham. Between 11pm and 1am the service between St Pancras and Ebbsfleet would be increased to twelve per hour. To enable the domestic services to stop at platforms previously designed for Eurostar trains, the platforms had to be raised. Docklands Light Railway The Docklands Light Railway extension to Stratford International consists of a short new line from Stratford International to Stratford station, then continues along the former North London Line route between and , stopping at Stratford High Street (on the site of the original Stratford Market railway station), Abbey Road, and Star Lane before joining the existing DLR branches from Canning Town to Woolwich Arsenal. Its opening was originally planned for July 2010, but was delayed to 31 August 2011. Bus services London Bus routes 97, 108, 308, 339 and night route N205 serve the station. International services The original intended purpose of Stratford International station was to act as the London stop for regional Eurostar trains bypassing St Pancras and continuing to other destinations in Britain. However, these services did not come into being, and Rob Holden, chief executive of LCR and deputy chairman of Eurostar, stated that, "stopping a high-speed train seven minutes out of St Pancras is less than ideal",