Riding through the heat: Assessing heat health risk of cycling based on diurnal temperature and shared-bike big data

IF 5.4 2区地球科学 Q1 GEOGRAPHY

Applied Geography Pub Date : 2025-09-04 DOI:10.1016/j.apgeog.2025.103764

Kun Zeng , Feng Gao , Yihuan Peng , Chang Liu , Wangyang Chen , Guanyao Li

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引用次数: 0

Abstract

Fine-scale heat health risks assessment is critical to improve resilience to global warming and extreme heat events. This study proposed a framework to estimate heat health risks of cyclists using massive bike-sharing trajectories and diurnal dynamic temperature data. This study proposed two indicators, accumulated heat health risks (CycHeat) and accumulated excessive heat health risks (CycExcessHeat), to estimate the heat health risks of bike-sharing cyclists in Beijing, Shanghai, and Xiamen based on massive GPS trajectories and diurnal dynamic temperature data. Results show that there is no significant difference in terms of the CycHeat between the morning peak and evening peak in both three cities. While the CycExcessHeat in the morning peak is significantly higher than that in the evening peak in Beijing, Shanghai, and Xiamen (p < 0.05). That is, the indicator that focuses on extreme heat is more reflective of spatiotemporal heterogeneity in cyclists' heat health risks. Finally, the relationship between CycExcessHeat and the built environment was regressed, and the model results align with the literature focusing on cycling frequency. This study provided a framework to estimate heat health risks of outdoor mobility, which provides management implications for transportation authorities and urban planning in the context of SDGs 3 and 11.

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高温骑行：基于昼夜温度和共享单车大数据评估骑行热健康风险

精细尺度热健康风险评估对于提高对全球变暖和极端高温事件的适应能力至关重要。本研究提出了一个框架，利用大量共享单车轨迹和昼夜动态温度数据来估计骑车者的热健康风险。本研究基于大量GPS轨迹和日动态温度数据，提出了累积热健康风险（CycHeat）和累积过热健康风险（CycExcessHeat）两个指标，对北京、上海和厦门共享单车骑行者的热健康风险进行估算。结果表明，三个城市的早高峰和晚高峰在CycHeat方面没有显著差异。北京、上海、厦门早高峰的cycexcess显著高于晚高峰（p < 0.05）。也就是说，关注极端高温的指标更能反映骑车者热健康风险的时空异质性。最后，回归了cycexcess与建筑环境的关系，模型结果与关注循环频率的文献一致。本研究提供了一个评估户外出行热健康风险的框架，为可持续发展目标3和11背景下的交通主管部门和城市规划提供了管理意义。

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来源期刊

Applied Geography GEOGRAPHY-

CiteScore

8.00

自引率

2.00%

发文量

134

期刊介绍： Applied Geography is a journal devoted to the publication of research which utilizes geographic approaches (human, physical, nature-society and GIScience) to resolve human problems that have a spatial dimension. These problems may be related to the assessment, management and allocation of the world physical and/or human resources. The underlying rationale of the journal is that only through a clear understanding of the relevant societal, physical, and coupled natural-humans systems can we resolve such problems. Papers are invited on any theme involving the application of geographical theory and methodology in the resolution of human problems.