page_title: High Speed 1
section_title: Network Rail (High Speed) Ltd
hierarchical_section_title: High Speed 1 / Operators / Network Rail (High Speed) Ltd
caption_attribution_description: English: High Speed 1 Looking from bridge on the A20 a mile East of Hothfield.
context_page_description: High Speed 1, legally the Channel Tunnel Rail Link, is a 67-mile high-speed railway linking London with the Channel Tunnel.
  The line carries international passenger traffic between the United Kingdom and mainland Europe; it also carries domestic passenger traffic to and from stations in Kent and east London, and Berne gauge freight traffic. The line crosses the River Medway, and tunnels under the River Thames, terminating at St Pancras International station on the north side of central London. It cost £5.8 billion to build and opened on 14 November 2007. Trains run at speeds of up to 300 kilometres per hour on HS1. Intermediate stations are at Stratford International in London, and Ebbsfleet International Station and Ashford International in Kent.
  International passenger services are provided by Eurostar, with journey times of London St. Pancras to Paris Gare du Nord in 2 hours 15 minutes, and St Pancras to Brussels-South in 1 hour 51 minutes. As of November 2015, Eurostar has used a fleet of 27 Class 373/1 multi-system trains capable of 300 kilometres per hour and 320 kilometres per hour Class 374 trains.
context_section_description: HS1 Ltd is responsible for overall managing and running of the line—along with the international railway stations at St Pancras, Stratford, Ashford and Ebbsfleet—with responsibility for the infrastructure itself sub-contracted to Network Rail (High Speed) Ltd (formerly known as Network Rail (CTRL) acting as the controller and infrastructure manager. Network Rail (CTRL) Limited was created as a subsidiary of Network Rail on 26 September 2003 for £57 million to take over the assets of the CTRL renewal and maintenance operations. Network Rail (High Speed) operates engineering, track maintenance machines, rescue locomotives, and infrastructure- and test trains.  Eurotunnel's subsidiary Europorte 2 operates its Eurotunnel Class 0001 (Krupp/MaK 6400) rescue locomotives on the line when required.
  Various track recording trains run as necessary, including visits by the New Measurement Train. On the night of 4/5 May 2011 the SNCF TGV Iris 320 laboratory train took over, being hauled from Coquelles to St Pancras and back, towed by Eurotunnel Krupp locomotives numbers 4 and 5. The Iris 320 runs  for Network Rail (High Speed) are an extension of the 100 km/h (62 mph) monitoring cycle already undertaken by SNCF International since December 2010 for Eurotunnel every two months.
caption: HS1 near Hothfield.
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