Network Rail are using a variety of different technology to keep the rail network running over the latest cold snap. A variety of issues caused by the bad weather can stop trains running. Delays to services caused by snow and extreme weather was up to 11% of all delays last year.
As Professor Sarah Greenham, of Birmingham University says, there are a multitude of reasons as to why snow causes issues, and why Network Rail’s weather resilience team are right to put their efforts into combatting it.
“Electrified railways may be vulnerable since cold can affect power supply, so ice forming on overhead lines, or third rails can bring trains to a standstill. However, switches may also be at risk from cold weather.
“Small heaters are usually fitted to switch assets that keep them clear of ice and snow but if they stop working for any reason, a switch may not operate and signalling systems could stop a train.” Greenham said.
Network Rail have been using a specially equipped winter fleet that keeps the railway running through the winter. Alongside the usual fleet of snow ploughs and hot air blowers, the maintenance team have been adopting new drone technology and thermal imaging to identify potential issues before they become a bigger problem.
Alongside the issues with ice, drifting snow can cause real issues, especially in the Highlands of Scotland. Over the last couple of years, several avalanche shelters have been built which are designed to protect some of the most vulnerable parts of the network.
However, it’s not just Network Rail which is intent on keeping the nation moving. TfL are also adopting new technologies to ensure that cold weather and ice are kept to a minimum. On the Underground, teams are running a large fleet of de-icing trains, employing thousands of heated rail points to keep rails as clear as possible and treating platforms to keep them safe for customers.
Glyn Barton, chief operating officer at TfL said: 'We have done everything possible to ensure we have well-rehearsed procedures in place to minimise disruption to the network during freezing conditions”.
Photo/Video Credit: Network Rail
