List of railway test tracks

Railway test tracks and their facilities are used for rolling stock testing and certification. Railway test tracks around the world include: == China == Beijing National Railway Test Centre == Czech Republic == Velim railway test circuit == France == Centre d'essais ferroviaires – Near Alstom Valenciennes factory site in Raismes, includes 2.75 km for testing at 100 km/h, a 1.85 km loop for endurance testing at 80 km/h, and a loop for testing driverless trains.

Source: Wikipedia — List of railway test tracks (CC BY-SA 4.0)