In a context of decreasing resources and of climate change, lowering road vehicles consumption is a key point to meet CO2 reduction requirements. In addition to car technological advances, eco-driving is part of the solution but the road infrastructure should ensure its development. This work aims to demonstrate that road energy demand and associated pollutant emissions can be reduced by working out minor optimization of road infrastructure itself. For this to happen, a simple eco-driving potential criterion is built upon infrastructure parameters such as slopes and sight distances. This criterion aims to detect Misplaced Speed-sectioning Positions (MSP) with regard to the Starting Point of Deceleration (SPD); with speed-sectioning being the succession of speed changes along a given route. An enhanced energy waste formulation is then developed to quantify the vehicles energy waste due to misplaced road-signs. Thirdly, a traffic simulation constitutes a framework for energy evaluation; considering a full flow of vehicles, based on real traffic data, and by modeling several driver behaviors. Simulation results show that a significant fuel reduction of up to 5.5% can be achieved locally, simply by moving a road sign, for rural areas and without degrading road safety.

中文翻译：

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通过优化道路速度分段来节省车辆能源

在资源减少和气候变化的背景下，降低道路车辆的消耗量是满足减少二氧化碳排放量的关键。除了汽车技术的进步，生态驾驶也是解决方案的一部分，但道路基础设施应确保其发展。这项工作旨在证明，通过对道路基础设施本身进行较小的优化，可以减少道路能源需求和相关的污染物排放。为此，要根据基础设施参数（例如坡度和视距）建立简单的生态驾驶潜力标准。该标准旨在检测相对于减速起始点（SPD）的错放速度分段位置（MSP）；速度分段是沿给定路线的连续速度变化。然后，开发了一种改进的能源浪费公式，以量化由于路标放置不正确而造成的车辆能源浪费。第三，交通模拟构成了能源评估的框架。根据实际交通数据并通过对几种驾驶员行为进行建模来考虑车辆的全流量。仿真结果表明，在农村地区，仅通过移动路标，就可以在本地实现高达5.5％的大幅燃油节省，并且不会降低道路安全性。