Du, Yiming;
Zhang, Anxiao;
Zhen, Qi;
Wei, Shen;
Jing, Hao;
Zheng, Yue;
Zhang, Qi;
(2025)
Remapping spatio-temporal cumulative heat stress of centralized rural community: an agent-based modeling approach.
Building and Environment
, 284
, Article 113429. 10.1016/j.buildenv.2025.113429.
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Abstract
Heat stress evaluation has gained increasing attention. Previous studies identified significant heterogeneity of heat stress between individuals’ perceptions and those determined by thermal environmental factors, showing that short-term heat exposure poses long-lasting health threats. This underscores the need for more behaviorally informed methods to assess potential cumulative heat stress. This study proposes an agent-based spatiotemporal approach to assess potential cumulative heat stress by integrating the residents’ behavior model, the community’s thermal environment model, and the space model. The behavior model includes agents’ schedules derived from a Markov chain model and their trajectories determined using an A* route choice algorithm. These trajectories enable the calculation of agent-based Physiologically Equivalent Temperature (aPET) and the Cumulative Heat Stress index (CHI). The results demonstrate that this approach enables a more nuanced assessment of potential cumulative heat stress in rural communities. aPET shows reasonable agreement with residents’ Thermal Sensation Votes (TSV), while CHI increases linearly with total outdoor duration and escalates sharply when single outdoor durations exceed two hours. The approach also refines high-stress areas on the spatial heat stress map, reducing them from extensive spaces to 16 critical hotspots. These findings emphasize the influence of residents’ behavior patterns on heat stress and provide a scientific basis for targeted cooling interventions and optimized rural spatial planning. This approach is particularly valuable for resource-constrained rural communities and may offer applications in broader environmental contexts.
| Type: | Article |
|---|---|
| Title: | Remapping spatio-temporal cumulative heat stress of centralized rural community: an agent-based modeling approach |
| DOI: | 10.1016/j.buildenv.2025.113429 |
| Publisher version: | https://doi.org/10.1016/j.buildenv.2025.113429 |
| Language: | English |
| Additional information: | This version is the author accepted manuscript. For information on re-use, please refer to the publisher’s terms and conditions. |
| Keywords: | Heat stress mapping, Spatiotemporal approach, Agent-based model (ABM), Centralized rural community, Agent-based Physiologically Equivalent Temperature (aPET), Cumulative Heat Stress Index (CHI) |
| UCL classification: | UCL UCL > Provost and Vice Provost Offices > UCL BEAMS UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of the Built Environment |
| URI: | https://discovery.ucl.ac.uk/id/eprint/10211570 |
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