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Iris 320 is a modified TGV train operated by
Iris 320 is a modified TGV train operated by SNCF
The Société nationale des chemins de fer français (; abbreviated as SNCF ; French for "National society of French railroads") is France's national state-owned railway company. Founded in 1938, it operates the country's national rail traffi ...
International as a dedicated track recording train for high-speed rail
High-speed rail (HSR) is a type of rail system that runs significantly faster than traditional rail, using an integrated system of specialised rolling stock and dedicated tracks. While there is no single standard that applies worldwide, lines ...
ways. The train can run at and consists of two power cars and eight trailer coaches, providing a long laboratory. It was converted from former SNCF TGV Réseau passenger train number 4530.
The train is primarily used for monitoring the whole of the French high-speed LGV network every 15 days. In addition it surveys other main lines in France operating at above and the HSL 1 high-speed line in Belgium for Infrabel.
Once every two months, Iris 320 takes a survey of the Channel Tunnel
The Channel Tunnel (french: Tunnel sous la Manche), also known as the Chunnel, is a railway tunnel that connects Folkestone (Kent, England, UK) with Coquelles ( Hauts-de-France, France) beneath the English Channel at the Strait of Dover. ...
for Eurotunnel (since December 2010) and of High Speed 1
High Speed 1 (HS1), legally the Channel Tunnel Rail Link (CTRL), is a high-speed railway linking London with the Channel Tunnel.
It is part of a line carrying international passenger traffic between the United Kingdom and mainland Europe; ...
for Network Rail (Channel Tunnel Rail Link) in the United Kingdom (since 4/5 May 2011). The cross-channel trips are diesel-hauled by Eurotunnel Class 0001 locomotives and travel at .
See also
* New Measurement Train, a British departmental train operated by Network Rail for track surveying, based on the British Rail Class 43 HST * Doctor Yellow, theJapan
Japan ( ja, 日本, or , and formally , ''Nihonkoku'') is an island country in East Asia. It is situated in the northwest Pacific Ocean, and is bordered on the west by the Sea of Japan, while extending from the Sea of Okhotsk in the north ...
ese track surveying Shinkansen
* Comprehensive Inspection Trains, Chinese high speed departmental trains operated on track surveying duties
References
External links
Iris 320 Non-passenger multiple units Electric multiple units with locomotive-like power cars Track recording trains {{europe-rail-transport-stub