根据包兰线黄羊湾至迎水桥段的客运需求,提出了四种增线方案,通过对各方案优缺点的分析比较,得出了最优增线方案,以期提高运输质量,满足运输需求。 According to the passenger demand of Huanglan Bay to Yingshuiqiao section of Bao Lan Line, four schemes of adding line are proposed. By analyzing and comparing the advantages and disadvantages of each scheme, the optimal scheme of adding line is obtained in order to improve the quality of transportation and meet the requirements of transportation demand.