In 1969, a third, 18 km test track was built to test Aérotrain prototype I80. This test track was in Loiret, France, north from Orléans, stretching between Saran and Ruan, a location that would enable it to be used in a future Paris-Orléans line. The track was elevated 5 m above the ground, was supported by pillars and allowed speeds of 400 km/h. A platform stood at each end of the line to reverse the train, while a hangar on the central platform at Chevilly housed the test vehicle. This line, while abandoned, became a famous landmark subject to cosmetic disputes after the end of the Aérotrain programme, and exists today, visible to the east of RN20 and the Paris-Orléans railway line.