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山区高速公路长坡路段路线设计不仅影响工程造价,更关乎行车安全。基于两个长陡坡典型工点的反思,从人、车使用需求的角度分析得:出长坡路段上坡方向应满足爬坡通行能力适应速度,下坡方向应保证安全制动的两个关键问题;针对现阶段超载严重、空挡下坡普遍的交通状况,综合相关研究和多条山区高速公路的实践心得,以安全、环保、经济的视角,分上下坡方向和不同交通组成,提出了长坡路段路线设计的对策及相关控制指标。
The design of the route of Changpo section of mountain highway not only affects the project cost, but also relates to traffic safety. Based on the reflection of two typical work sites with long and short steep slopes, from the perspective of the demand of people and vehicles, it is concluded that the uphill direction of uphill section should meet the requirements of climbing capacity and the safe braking should be ensured in downhill direction In the light of safety, environmental protection and economic perspectives, ascending and descending direction and different traffic composition, the paper proposes a long-term and long- Countermeasures of Slope Route Design and Relevant Control Indexes.