快速路改建为高速路的可用性评估及关键技术研究

Usable Evaluation and Key Technology of Reconstructing Rapid Transit Way into Expressway

以石家庄市南绕城高速公路项目为工程依托,以循环经济理论为指导思想,结合行驶力学原理,从运行速度协调性角度对公路三维立体线形可用性进行评估研究,创建快速路线形可用性评估指标,并且对改造时关键技术（C值改造）进行了研究,最终达到在满足标准规范要求、保证行车安全舒适的前提下,实现既有三维立体线形的利用最大化。

Based on the project of Shijiazhuang southern ring city expressway, according to recycle economy theory and driving mechanical principle, this paper studies the usable evaluation of highway 3D line from running speed coordination, sets up usable evaluation index of rapid high- way line, and researches key technology （C value remodel）during reconstruction. The research result is that the utilization of existed 3D line reaches maximum under the condition of meeting specification requirements and ensuring driving comfort.