Atal Road TunnelConnectivity Beneath the Himalayas
Himachal Pradesh, India
Public-safety wireless communication delivered across the 8.8 km Atal Tunnel — the world’s highest-altitude road tunnel — bringing VHF, UHF and FM coverage inside a confined mountain crossing where conventional signal penetration is impossible.
The world’s highest-altitude road tunnel
A landmark strategic crossing beneath the Rohtang Pass in Himachal Pradesh — engineered as a twin-tube system with a dedicated safety and escape route, and connected by cross-passages every 300 metres.
- World's highest-altitude road tunnel
- Tunnel length of 8.8 kilometres
- Two tubes running parallel to each other
- One tube for main commuter traffic; one for safety and escape use in an emergency
- The two tubes are connected by cross passages at regular intervals of every 300 metres
Maintaining reliable communication in terrain where conventional signal penetration is impossible.
Mountain Terrain
Positioned within mountain terrain, making signal penetration impossible.
Avalanche-Prone
Route runs through an avalanche-prone stretch of the Himalayas.
Rough Weather
Rough weather conditions and frequent traffic jams at the portals.
Heavy Snow
Heavy snow and avalanches around the tunnel throughout winter.
Reliable communication where conventional coverage cannot reach.
- Survey
- Design
- Supply
- Installation
- Testing & Commissioning
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