Abstract：
Permeable pavements help reduce surface temperatures and have been widely implemented in urban areas. This study utilized an in-use permeable pavement sidewalk in front of a mass rapid transit station in the Taipei city center of Taiwan to determine the actual pavement surface temperature performance. A neighboring asphalt road and impervious pavement were also monitored. With a full year of continuous monitoring, the results showed that the temperature of permeable pavement was 3.7 °C lower than that of impervious pavement and 4.5 °C lower than that of asphalt pavement in the hot season. The frequent rainfall in spring resulted in the smallest temperature differences between the different pavement types. The cooling effects of permeable pavement differed at the different air temperatures. At air temperatures lower than 15 °C, the differences among pavement surface temperatures were noticeable. However, when the air temperature was higher than 35 °C, the surface temperature of permeable pavement was not different from that of impervious pavement and was greater than 55 °C. Field observations were carried out to determine the effects on the apparent temperature and the future surface temperature of climate change scenarios. The results showed that permeable pavement could reduce the average apparent temperature to near the air temperature, and asphalt pavement could increase the apparent temperature by 1.2 °C, assuming that the pavement temperature completely affects the air temperature. With the good prediction ability of the machine learning approach and 15 environmental factors, the preliminary prediction showed the projected surface temperature change in Taipei city in 2033. In the worst-case scenario, the average impervious pavement temperature is as high as 39.12 °C, whereas the average permeable pavement temperature is 32.50 °C.
摘要：
透水路面有助于降低地表温度，并已在城市地区广泛实施。这项研究利用了台湾台北市中心一个大众快速运输站前的正在使用的透水人行道，以确定实际的路面温度性能。还监测了邻近的沥青路面和不透水路面。经过一整年的持续监测,结果表明，在炎热季节，透水路面的温度比不透水路面的温度低3.7℃，比沥青路面的温度低4.5℃。春季的频繁降雨导致不同路面类型之间的温差最小。透水路面的冷却效果在不同的空气温度下有所不同。在气温低于15°C时，路面表面温度之间的差异很明显。然而,当空气温度高于35°C时，透水路面的表面温度与不透水路面的温度没有区别，并且大于55°C。进行了实地观察，以确定气候变化情景对表观温度和未来地表温度的影响。结果表明,透水路面能使平均表观温度降低到接近空气温度,沥青路面可使表观温度提高1.2°C，假设路面温度完全影响空气温度。凭借机器学习方法的良好预测能力和15个环境因素，初步预测显示了2033年台北市的地表温度变化。在最坏的情况下,路面平均不透水温度高达39.12℃,而平均透水路面温度为32.50°C。
