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在山区或半山区修建公路,由于自然条件复杂,地形多变,一般工程较大,而行车速度不高,如何充分利用自然地形改进公路几何线形的设计方法,以提高山区公路的平均行车速度,节省工程费用和增加经济效益呢?这是值得我们探讨的问题。按照1981年部颁《公路工程技术标准》(以下简称《标准》)第1.0.2条、2.0.2条规定:公路根据交通量及其使用任务、性质划分等级,各级公路按地形类别确定计算行车速度和划分最小路段长度。结合我省地形
How to make full use of the natural terrain to improve the design method of the geometric line of the highway in order to improve the average speed of the highway in the mountainous area because of the complicated natural conditions, the changeable topography, the general construction is large and the driving speed is not high, Save engineering costs and increase economic efficiency? This is worth our discussion. In accordance with the provisions of Article 1.0.2 and 2.0.2 of the Ministry of Highway Engineering Standards (hereinafter referred to as the “Standards”) promulgated by the Ministry of Science and Technology in 1981, roads are classified according to the amount of traffic and the tasks and properties to be used, Calculate the speed and the minimum length of the road segment. Combined with the province’s terrain