Implications of climate change for thermal discomfort on underground railways
Implications of climate change for thermal discomfort on underground railways
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DOI：
10.1016/j.trd.2014.05.002
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发表时间：
2014-07
影响因子：
7.6
通讯作者：
K. Jenkins;Mark J Gilbey;Jim W Hall;V. Glenis;C. Kilsby
中科院分区：
文献类型：
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作者：
K. Jenkins;Mark J Gilbey;Jim W Hall;V. Glenis;C. Kilsby
炎热的天气、通风设备、不断变化的乘客需求和服务预期都引起了人们对伦敦地铁热舒适性的日益关注。这项研究估计了在未来气候变化的情况下，在地铁路段上旅行的乘客可能遭受热不适的天数，以及潜在的不满意乘客数量。提出了一种基于风险的方法，将为城市地区改装的空间天气发生器与热舒适模型相结合。该研究通过考虑列车温度降低2摄氏度和4摄氏度代表轿车冷却的影响，对适应方案进行了初步评估。2050年高温情景下的中值结果表明，所有被评估的地铁线路可能会经历几乎完全的乘客对列车内热环境的不满，即使其他情况不会发生变化也不太可能。旨在降低列车温度的调整有可能在热舒适性方面提供切实的改善。然而，预计这不足以在高排放情况下在2020年代维持许多线路的舒适热条件，需要同时实施其他基础设施冷却措施的组合。
Hot weather events, ventilation assets, changing passenger demand and service expectations have all caused increased attention on thermal comfort on London’s Tube. This study provides estimates of the future number of days when passengers travelling on sections of the Tube could be subjected to thermal discomfort under future scenarios of climate change, and the potential number of passengers dissatisfied. A risk based methodology is presented, integrating a spatial weather generator modified for urban areas and a thermal comfort model. The study provides an initial assessment of adaptation options by considering the implications of lowering train temperatures by 2 °C and 4 °C to represent saloon cooling. Median results under a 2050 high scenario indicate that all Tube lines assessed could experience near-complete passenger dissatisfaction with the thermal environment in trains in the unlikely event that nothing else were to change. Adaptation aimed at lowering train temperatures has the potential to provide tangible improvements in thermal comfort. However, this was not projected to be sufficient to maintain comfortable thermal conditions for many of the lines in the 2050s under high emission scenarios, requiring a combination of other infrastructure cooling measures to be implemented in parallel.