Network Rail has used a drone to gather information on the geography of a part of Devon badly hit by storms in 2014.
The infrastructure operator sent up an unmanned aerial vehicle from a boat to take footage of the cliffs at Teignmouth.
The footage collected by the drone will be turned into a 3D model as Network Rail works to develop long-term solutions for the rail link between Exeter and Newton Abbot. Part of the line at Dawlish collapsed into the sea following extreme weather two years ago.
Network Rail commercial scheme sponsor for the project Joanna Grew said: “Securing the future of this line is extremely important to us, which is why we are using the latest technology to build up the most accurate picture of the landscape, how it is likely to change, and what we can do to improve its resilience.”
A study outlining the options available to improve the resilience of this section of the Great Western route will be submitted to the Department for Transport later this month.