Noun
(automotive) A paved track on which road vehicles can be tested.
(rail transport) A railway track for the purpose of testing trains.
Source: en.wiktionary.orgIt was for a time known as the Paul Ricard High Tech Test Track (Paul Ricard HTTT). Source: Internet
The Mumbai Monorail is the first operational monorail network in India citation (excluding the Skybus Metro Test Track in Goa ) since the Patiala State Monorail Trainways closed in 1927. Source: Internet