GICONSIME Research Group, Department of Construction and Manufacturing Engineering, Polytechnic School of Mieres, University of Oviedo, Calle Gonzalo Gutierrez Quiros s/n, 33600, Mieres, (Asturias), Spain.
GITECO Research Group, Universidad de Cantabria, Av. de los Castros s/n, 39005, Santander, Spain.
Environ Sci Pollut Res Int. 2018 Jul;25(20):19228-19237. doi: 10.1007/s11356-017-9170-7. Epub 2017 May 23.
Road drainage is one of the most relevant assets in transport infrastructure due to its inherent influence on traffic management and road safety. Highway filter drains (HFDs), also known as "French Drains", are the main drainage system currently in use in the UK, throughout 7000 km of its strategic road network. Despite being a widespread technique across the whole country, little research has been completed on their design considerations and their subsequent impact on their hydraulic performance, representing a gap in the field. Laboratory experiments have been proven to be a reliable indicator for the simulation of the hydraulic performance of stormwater best management practices (BMPs). In addition to this, stormwater management tools (SMT) have been preferentially chosen as a design tool for BMPs by practitioners from all over the world. In this context, this research aims to investigate the hydraulic performance of HFDs by comparing the results from laboratory simulation and two widely used SMT such as the US EPA's stormwater management model (SWMM) and MicroDrainage®. Statistical analyses were applied to a series of rainfall scenarios simulated, showing a high level of accuracy between the results obtained in laboratory and using SMT as indicated by the high and low values of the Nash-Sutcliffe and R coefficients and root-mean-square error (RMSE) reached, which validated the usefulness of SMT to determine the hydraulic performance of HFDs.
道路排水系统是交通基础设施中最重要的资产之一，因为它对交通管理和道路安全有着固有的影响。公路滤水系统（HFD），也被称为“法国排水系统”，是目前在英国广泛使用的主要排水系统，其在 7000 公里的战略道路网络中都有应用。尽管这种技术在全国范围内得到了广泛应用，但对其设计考虑因素及其对水力性能的后续影响的研究很少，这是该领域的一个空白。实验室实验已被证明是模拟雨水最佳管理实践（BMP）水力性能的可靠指标。除此之外，雨水管理工具（SMT）已被世界各地的从业者优先选为 BMP 的设计工具。在这种情况下，本研究旨在通过比较实验室模拟和两种广泛使用的 SMT（如美国环保署的雨水管理模型（SWMM）和 MicroDrainage®）的结果，来研究 HFD 的水力性能。统计分析应用于一系列模拟的降雨场景，结果表明，实验室获得的结果与使用 SMT 之间具有高度的准确性，这表明纳什-苏特克里夫和 R 系数以及均方根误差（RMSE）的值较高，验证了 SMT 用于确定 HFD 水力性能的有用性。
