To measure the speed without the luxury of GPS reception, a high-speed camera mounted inside a vehicle detects reflective tags mounted every 5 m along the tunnel’s wall. This provides accurate ...

The Transatlantic Tunnel's primary function would be to facilitate high-speed train travel. Traditional car travel would be impractical, as the journey would take days and require complex ...

NEW YORK (PIX11) – A subway train stalled inside a tunnel between Queens and Manhattan on Friday, limiting N service between the two boroughs, according to the MTA.