端点受限的立交平面线形设计方法研究

Research of Design Method of Interchange Horizontal Alignment with Restricted End Points

本文分析了立交平面线形设计中线形端点（起终点）受到限制的两类情况，提出其相应的设计计算方法，可用于线形的拟定、调整和优化组合，使得线形既可满足约束条件，又衔接协调，可提高设计效率和设计质量。

Two kinds of end point(starting and terminal points )restrictions in inter-change honizontal alignment design are analyzed in this paper and a new design method forthe end point restrictions is put forward which can be used for draft,adjustment and optimization of alignments to meet the demands of restrain conditions and alignment coordination,so as the efficiency and quality of design can be enhanced.