The Dawlish Additional Line is about future-proofing the resilience and, therefore, reliability of the existing coastal mainline between Exeter and Newton Abbot which is crucial to the PRTF. The line is vital to the economy of the peninsula west of Exeter," it says in the report.
A new line may potentially act as a diversion route from the Dawlish line, which would increase the resilience of the network, according to the task force.