The VAL system can handle headways as small as 60 seconds, and the Lille VAL system rapidly proved itself with a 99.8% availability. The control center computer system automatically speeds up or slows down trains in order to maintain a timetable. VAL can cope with unanticipated demand by inserting additional trains into the network as required by remote command from the control center. The system detects the location of trains on the guideway by the use of ultrasonic sensors. All axles on these vehicles are motored with 150 kW (201 hp) electrical motors. The vehicles are lightweight 2-car sets ( VAL 206 or VAL 208) with 124 total capacity, or twin sets ( VAL 256) with 80 seated and 160 standing capacity. Electrical power at 750 V DC is collected by shoes from the guidebars. Primary suspension is by rubber tires, with pairs of horizontal tires to provide lateral guidance. The VAL system uses a fully automated elevated guideway, which may be metal or concrete depending on prevailing weather conditions. VAL-style track point as used on the Taipei Wenhu Line. The name is a backronym, with the first project to use the technology nicknamed VAL after the routing of the line: Villeneuve d'Ascq à Lille ( lit. The current version of the VAL product is marketed as NeoVal (with a distinction between AirVal for airport environments and CityVal for more conventional transit environments). The VAL technology is now marketed by Siemens, which acquired Matra in the late 1990s.Ī total of 11 lines in 8 systems based on the VAL technology are currently in operation worldwide.
The technology was developed at the Lille University of Science and Technology, was marketed by Matra, and first used in the early 1980s for the Lille Metro system, one of the world's first fully automated mass-transit rail networks, preceded only by the Port Island Line in Kobe, Japan. 'automatic light vehicle') or VAL is a type of driverless (automated), rubber-tyred, medium-capacity rail transport system ( people mover). Interior of VAL 256 with manufacturer's decal.
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