Laboratoire Central des Ponts et Chaussées, Route de Bouaye, 44 340 Bouguenais Cedex, France.
Accid Anal Prev. 2010 Nov;42(6):1736-43. doi: 10.1016/j.aap.2010.04.014. Epub 2010 May 31.
Usually, road safety is assessed by following adequate highway geometric design standards and can be controlled later by measurement and expertise. Nevertheless, interactions between vehicle dynamics and road characteristics cannot be simultaneously analyzed for these two means of safety evaluation. In this study, an analytical method based on road/vehicle physical interactions applied to road diagnosis is proposed. Vehicle "point" and "bicycle" models are used in this first approach. French highway geometric design standards and a statistical method are presented and evaluated on a real curve case. The proposed numerical criterion, for the "bicycle" model, is then compared to these two classical methods for the considered road section. Its advantages are that it takes into account several combined parameters, that road defects are precisely localized and that it provides hierarchically classified solutions to the road managers. After this comparison step, further improvements should be focused on the modeling of successive curves and on the improvement of the informations given to the road manager.
通常，道路安全是通过遵循适当的高速公路几何设计标准来评估的，并且可以通过测量和专业知识来进行后期控制。然而，对于这两种安全评估方法，车辆动力学和道路特性之间的相互作用无法同时进行分析。在本研究中，提出了一种基于道路/车辆物理相互作用的分析方法，应用于道路诊断。在这个初步方法中，使用了车辆“点”和“自行车”模型。介绍了法国高速公路几何设计标准和一种统计方法，并在一个实际弯道案例中进行了评估。然后，将所提出的“自行车”模型的数值标准与该路段的这两种经典方法进行了比较。其优点是它考虑了几个组合参数，能够精确地定位道路缺陷，并为道路管理者提供分级分类的解决方案。在进行了这一比较步骤之后，应进一步集中精力改进连续弯道的建模以及向道路管理者提供的信息。
