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Longitudinal profile optimization for roads within an eco-design framework

机译：在生态设计框架内优化道路的纵断面

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摘要

This paper proposes a methodology to optimize the longitudinal profile of roads according to either an energy consumption or Global Warming Potential (GWP) criterion calculated for both construction and operation phases. For the construction phase assessment, this methodology is based on a earthworks model that computes the geometric differences between the natural terrain and the longitudinal road profile and moreover uses environmental data validated with real experiments. The operation phase is assessed by simulating traffic over a ten-years period. Traffic simulations are based on vehicle dynamic models, also validated with real experiments. The optimization problem is set up in a finite dimensional optimization. A case study illustrates this methodology. By taking into account actual traffic measurements, the optimized profile decreases by 6% the total primary energy consumption and by 8% the GWP.
机译：本文提出了一种方法，可以根据能源消耗量或为施工和运营阶段计算的全球变暖潜势（GWP）标准来优化道路的纵向轮廓。对于施工阶段评估，此方法基于土方工程模型，该模型计算自然地形和纵向道路轮廓之间的几何差异，并使用经过实际实验验证的环境数据。通过模拟十年的流量来评估运营阶段。交通模拟基于车辆动力学模型，并已通过实际实验验证。优化问题是在有限维优化中设置的。案例研究说明了这种方法。通过考虑实际的流量测量，优化的配置文件将一次能源总消耗降低了6％，GWP降低了8％。

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