Editing TGV (section)

===TGV Duplex===
{{Main|TGV Duplex}}
[[File:TGV double decker DSC00132.jpg|right|thumb|The TGV Duplex power cars use a more streamlined nose than previous TGVs.]]
The Duplex was built to increase TGV capacity without increasing train length or the number of trains. Each carriage has two levels, with access doors at the lower level taking advantage of low French [[railway platform|platforms]]. A staircase gives access to the upper level, where the gangway between carriages is located. There are 512 seats per set. On busy routes such as Paris-Marseille they are operated in pairs, providing 1,024 seats in two Duplex sets or 800 in a Duplex set plus a Reseau set. Each set has a wheelchair accessible compartment.

After a lengthy development process starting in 1988 (during which they were known as the TGV-2N) the original batch of 30 was built between 1995 and 1998. Further deliveries started in 2000 with the Duplex fleet now totaling 160 units, making it the backbone of the SNCF TGV-fleet. They weigh 380 tonnes and are {{convert|200|m|ftin|abbr=on}} long, made up of two power cars and eight carriages. Extensive use of aluminum means that they weigh not much more than the TGV Réseau sets they supplement. The bi-current power cars provide 8,800&nbsp;kW, and they have a slightly increased speed of {{convert|320|km/h|4=0|abbr=on}}.

Duplex TGVs run on all of French high-speed lines.<ref>{{cite web|url=http://electric-rly-society.org.uk/the-history-of-the-french-high-speed-rail-network-and-tgv/|author=The Electric Railway Society|title=The History of the French High Speed Rail Network and TGV|date=March 2015|access-date=2016-10-19|language=en}}</ref>