【摘要】 本文以机场ＣＡＤ 系统的核心模型中设计面Ｃｏｏｎｓ 曲面模型为基础，尝试将这一模型应用于道路平面交叉口立面设计。实践表明，该模型能够较好地表达道路平面交叉口设计面，对于交叉口立面设计中的特征点高程调整、方案确定等较为方便。更多还原

【Abstract】 Based on coons model in the core model of airport CAD system, the authors try to apply this model for the vertical design of at-grade intersections. The practice proves, that the model can describe the design surface of intersection. It is easier to calculate the height and to study the scheme.更多还原