立交匝道平面线形设计的一种优化方法

Optimization Method of Interchange Ramp Alignment Design

分析立交匝道平面线形设计特点、方法及实质，对基本而常用的“缓—圆—缓”匝道线形，提出优化设计模型，并给出相应的优化计算方法，从而实现自动化和最优化设计。

Through an analysis of the characteristics, methods and essence of the interchange alignment ramp design, an optimization design model for the combiner transition circle transition curves usually used in ramp alignments is developed in the paper. The algorithm of the optimization model is also given to realize the automation and optimization design.