In-tunnel wireless is part of national project to improve safety through deploying a telecommunications network of fixed (FTN) and wireless (GSM-R) technology. Once radio coverage is in place, train drivers and signalers will have a secure and uninterrupted communications link.
Seamless wireless coverage is technically difficult to achieve in tunnels and further complicated by the fact that each tunnel is unique. As a result, wireless consultancy and design company Red-M had to carry out individual site surveys on 165 tunnels.
As part of phase one of the project, Red-M has produced 115 detailed designs for rollout, which will use radio repeaters to keep costs down.
