用AI分析城市形态对干旱区能耗的影响,找出关键设计参数。
Adopting Explainable-AI to investigate the impact of urban morphology design on energy and environmental performance in dry-arid climates
- 结合建筑能耗模拟与可解释AI,评估30个城市形态参数影响。
- XGBoost模型准确率达0.92,仅需3.64秒完成训练。
- 揭示建筑形状、窗墙比等参数对节能和日照的关键作用。
在快速城市化地区,设计气候响应型城市形态对可持续发展至关重要,尤其在干旱气候区,城市形态显著影响能耗与环境表现。本研究通过融合城市建筑能耗建模(UBEM)与机器学习(ML)及可解释人工智能技术(如SHAP),以德黑兰密集城区为案例,评估并排序30个街区层面的形态参数对冷却、供暖、照明需求及日照暴露、光伏发电和天空视野因子等环境性能的影响。七种机器学习算法中,XGBoost表现最优,预测准确率高达R²: 0.92,训练时间仅3.64秒。结果表明,建筑形状、窗墙比和商业比例是影响能效的核心因素,而邻近建筑的高度与间距则显著影响降温需求与太阳能获取。通过对比不同密度与布局的街区,研究获得可推广至其他干旱区域的通用洞见。该方法将UBEM与可解释AI结合,构建了一个可扩展的数据驱动框架,适用于全球高密度城市的气候适应性设计。
原文摘要 · Abstract (English)
In rapidly urbanizing regions, designing climate-responsive urban forms is crucial for sustainable development, especially in dry arid-climates where urban morphology has a significant impact on energy consumption and environmental performance. This study advances urban morphology evaluation by combining Urban Building Energy Modeling (UBEM) with machine learning methods (ML) and Explainable AI techniques, specifically Shapley Additive Explanations (SHAP). Using Tehran's dense urban landscape as a case study, this research assesses and ranks the impact of 30 morphology parameters at the urban block level on key energy metrics (cooling, heating, and lighting demand) and environmental performance (sunlight exposure, photovoltaic generation, and Sky View Factor). Among seven ML algorithms evaluated, the XGBoost model was the most effective predictor, achieving high accuracy (R2: 0.92) and a training time of 3.64 seconds. Findings reveal that building shape, window-to-wall ratio, and commercial ratio are the most critical parameters affecting energy efficiency, while the heights and distances of neighboring buildings strongly influence cooling demand and solar access. By evaluating urban blocks with varied densities and configurations, this study offers generalizable insights applicable to other dry-arid regions. Moreover, the integration of UBEM and Explainable AI offers a scalable, data-driven framework for developing climate-responsive urban designs adaptable to high-density environments worldwide.
Thank you to arXiv for use of its open access interoperability. PaperDance 不是 arXiv 官方产品;中文卡片由大模型生成,请以原文为准。