For many, train journeys are the most efficient and relaxing way to reach their destination, thanks in part to the tunnels that cut through hills and mountains. While there are over a thousand ...

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 National High-Speed Rail Corporation Limited (NHSRCL) has announced significant progress in the construction of India’s ...