Short Wave Climate Change Means More Subway Floods; How Cities Are Adapting
Sep 15, 2021
As climate change intensifies, urban subway systems are facing unprecedented flooding challenges. Rising sea levels and increased storm frequency threaten critical infrastructure, especially in major cities like New York. Innovative strategies are being developed globally to enhance flood resilience. Discussions include the unique phenomenon of 'salty flooding' and the urgent need for cities to adapt their transit systems. The balance between maintaining reliable public transport and protecting it from climate-related threats is more crucial than ever.
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D.C. Subway Flooding
- In Washington, D.C., a subway station near Connecticut Avenue flooded in 2016, even though it's far from any major river.
- The flooding was caused by rainwater flowing downhill from surrounding areas, overwhelming the drainage system and creating a waterfall down the station's escalator.
Asian Cities' Flood Prevention
- Asian cities are at the forefront of addressing subway flooding due to serious climate impacts and newer subway systems.
- These newer systems, built with modern techniques, are easier to waterproof compared to older systems like New York's.
Innovative Flood Solutions
- In Taipei, authorities have raised station entrances above street level to prevent water entry.
- Researchers in Kyoto, Japan, built a model escalator to simulate floods and develop safer station closure procedures.