Members at Lake District National Park Authority development committee have been told it is unusual to grant temporary permission for a plan like this, but it is perfectly legal and there are very specific reasons why this would be an 18 month trial period.
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No trains will be running between Carlisle, and Edinburgh and Glasgow Central.
All Northern services at Carlisle station will be affected by the strikes, and replacement buses are in operation.
An earthquake measuring 1.7 on the Richter scale has been recorded in Cumbria.