Methodology to assess coastal infrastructure resilience to climate change

Methodology to assess coastal infrastructure resilience to climate change.
Roca, M.and Hames, D. and Gouldby, B.P. and Zve, E. and Rowlands, O. and Barter, P. and Grew, J.
In: FLOODrisk 2016, 18-20 October 2016, Lyon, France. (2016)

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Abstract:The section of railway which runs along the coastline of south Devon in United Kingdom, from Exeter to Newton Abbot, is one of the most photographed sections of railway in the world. It was opened in 1846 with embankments and seawalls protecting and supporting the railway, providing the route of an atmospheric railway. Despite regular maintenance however, there has been a history of storm damage, one of the most severe occurring in February 2014. This resulted in the collapse of the line, interruption of all rail traffic into and out of the far South-West of the United Kingdom (affecting parts of Devon and the whole of Cornwall) and significant damage to the region’s economy. In order to improve the resilience of the line, several options have been considered to evaluate and reduce climate change impacts to the railway. This paper describes the methodological approach developed to evaluate the risks of flooding for a range of scenarios in the estuary and open coast reaches of the line. Components to derive the present day and future climate change coastal conditions including some possible adaptation measures are also presented together with the results of the hindcasting analysis to assess the performance of the modelling system. An overview of the modelling results obtained to support the development of a long-term Resilience Strategy for asset management is also discussed.
Item Type:Conference or Workshop Item (Paper)
Subjects:Floods > Climate change
Floods > General
Coasts > General
ID Code:1304
Deposited On:18 May 2016 14:24
Last Modified:18 Jan 2017 13:11

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