A New Approach to Modeling Vehicle-Induced Heat and Its Thermal Effects on Road Surface Temperature
A New Approach to Modeling Vehicle-Induced Heat and Its Thermal Effects on Road Surface Temperature
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DOI：
10.1175/jamc-d-11-0156.1
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发表时间：
2012-11
影响因子：
3
通讯作者：
A. Fujimoto;A. Saida;T. Fukuhara
中科院分区：
文献类型：
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作者：
A. Fujimoto;A. Saida;T. Fukuhara
测量了道路横向上的车辆诱导风速分布。还进行了统计分析，以找到车辆在交通信号灯处的停车时间和停车位置。这些结果被用来建立一个热平衡模型来预测由车辆热效应引起的路面温度。为了验证该模型，测量和计算的路面温度的自由运行（单路径）的位置和交通信号灯的位置进行了比较。定量分析了气象热通量和车辆热通量对路面温度的贡献。对于目前的交通和气象条件，计算和测量的路面温度是在协议的自由运行和交通信号灯的位置。此外，车辆对路面温度的热贡献在两个位置都不可忽略。
The distribution of vehicle-induced wind velocity in the transversal direction of roads is measured. A statistical analysis is also performed to find the vehicle stopping time and stopping position at traffic signals. These results are used to build a heat-balance model to predict the road surface temperature resulting from the thermal effects of vehicles. To validate the model, measured and calculated road surface temperatures for a free-running (single path) location and a traffic-signal location are compared. The contributions of meteorological and vehicle-induced heat fluxes to the road surface temperature are quantitatively analyzed. For the present traffic and meteorological conditions, the calculated and measured road surface temperatures were in agreement for both the free-running and traffic-signal locations. Furthermore, the thermal contribution of vehicles to the road surface temperature was found to be nonnegligible at both locations.