RailTel Corporation of India Limited (RailTel) has received an order worth Rs 668.3 million for supply, installation, testing and commissioning of integrated tunnel communication system, emergency call arrangements in tunnels and integrated passenger information system (IPIS) at stations in Bhairabi-Sairang new single line section of Lumding division of Northeast Frontier Railway (NFR).
Communication inside the tunnels is interrupted due to poor signal coverage, which can hamper train operation and maintenance activities. This state-of-the-art integrated tunnel communication system is designed to provide uninterrupted radio communication between handheld radios inside tunnel, to the base station at tunnel control rooms and station masters of adjacent stations.
Handheld devices are allocated to personnel involved in construction, maintenance, and train operations. The communication channels within the tunnel operate independently, simultaneously, and without any risk of failure. The successful implementation of this system is pivotal for ensuring the safety and efficiency of train operations within the challenging terrain of the Indian Railway tunnels.
This tunnel communication project aims to establish continuous coverage along the entire tunnel length, ensuring clear audio without interference. The system guarantees reliable operation in the harsh environmental conditions within the tunnel, providing trunked radio channels across various bands. Additionally, the system boasts user-friendly operation and maintenance, contributing to a streamlined and efficient communication infrastructure within the tunnels. Bhairabi- Sairang new line project is one of the toughest sections where problem of road approach, non-availability of materials, higher cost of transportations, tough terrain etc makes it a very challenging work to execute.
The project work includes provision of supply and installation of IT data networking infrastructure, public address (PA) and emergency/SOS call points system, internet protocol (IP) based CCTV surveillance system. Furthermore, design, supply, installation, wiring, testing, and commissioning of integrated communication system VHF (simplex) and backbone network for smart facilities and emergency communication system are also included in the scope of work
RailTel is also implementing tunnel radio communication projects for Katra-Banihal section of Northern Railway, Panvel-Karjat, Karjat-Lonawala and Kasara-Igatpuri section of Central Railway and Castle Rock-Kulem section (Braganza Ghat) of South Western Railway.
