Climate Change Impacts on North Carolina Roadway System in 2050: A Systemic Perspective on Risk Interactions and Failure Propagation

•Risk interaction and failure propagation support accurate and realistic analysis.•Climate change poses threat on NC roadway, causing inaccessibility and congestion.•Road system responses to climate change in non-linear and dynamic pattern.•Enhance redundancy, protect critical infrastructure, and site-specific planning.•Study suggests a potential climate “tipping point” for roadways.