交通标准化Issue(3)：48-54,7.DOI:10.16503/j.cnki.2095-9931.2015.03.009
基于三维线形运行速度的山区旅游公路线形安全性评价
Safety Evaluation of Mountain Scenic Highway Based on Operating Speed of Three-Dimensional Alignment
毛嘉川1
作者信息
- 1. 中铁二院工程集团有限责任公司，四川 成都 610031
- 折叠
摘要
Abstract
Operating speed is often taken as an evaluation indicator in safety evaluation of highway alignment design. In consideration of the complex alignment and vehicle types of mountain scenic high⁃ways, the calculation condition of operating speed should be pertinent and the calculation means should also be improved. The operating speed curves of typical vehicle types and typical driving modes under the three-dimensional alignment conditions were predicted respectively by selecting the Hongya—Emei Scenic Highway as the object, applying the"operating speed prediction model system of heavily-loaded vehicles on complex mountainous highways under the three-dimensional alignment conditions", and con⁃sidering the transport characteristics of the left and right lanes at the long steep grade. The coordination and safety of horizontal and vertical alignment parameters were analyzed, and the suggestions on align⁃ment modification were proposed. In respect of the difficulty in alignment adjustment, analogue simula⁃tion collision was adopted to strengthen the protection class of the concrete guardrails. The setting of the truck escape ramps was also checked. The research results show that the alignment design of mountain highway can be evaluated and improved in a more practical way by making an operating speed forecast based on the systematic analysis integrating highway spatial alignment, multiple vehicle types, the driver and other factors.关键词
山区公路/旅游公路/三维线形/运行速度/公路安全评价/大型车辆Key words
mountain highway/scenic highway/three-dimensional alignment/operating speed/safe-ty evaluation of highway/large vehicles分类
交通工程引用本文复制引用
毛嘉川..基于三维线形运行速度的山区旅游公路线形安全性评价[J].交通标准化,2015,(3):48-54,7.
