A Methodology for Incorporating Climate Change Adaptation in Infrastructure Planning and Design: Roadways
This guide explains how to incorporate climate change adaptation in planning and designing roadway projects. It is part of a series of guides that address key infrastructure.
The guide gives an overview of potential climate impacts on roadway activities and adaptation options, and guidance for using a risk assessment methodology to determine appropriate design measures. Broader elements such as service delivery and management of supply and demand are also discussed since they are closely associated with the optimum performance of roadways.
It stresses the importance when designing or rehabilitating infrastructure to plan not just for the current climate, but for the scenario projected for the entire design life of the asset.
Climate change may bring extreme weather events that cause damage to roadways, harm their performance or restrict access. Since most roadways are designed using historical climate data, existing roadways may not be in the condition to handle the impacts of a changing climate. The uncertain nature of climate change is likely to bring about additional challenges to the design, construction, and operation of new infrastructure.
The guide uses tables to explain major climate impacts and risks for roadways and adaptation measures to consider. A climate change resilient infrastructure design case study is also provided.
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