1项目概况大连快速轨道交通3号线工程全长46.468公里。全线设车站10个,其中6个为高架站,4个为地面站。设单洞双线马蹄形隧道一座,高架桥20座,分布于全线上,其余均为地面线,采用新建线路一次铺设无缝线路新技术。闭路电视监控系统是供给车站行车值班员监视本站站台层内列车进出车站和乘客候车、乘降列 1 Project Overview Dalian Rapid Rail Transit Line 3 project a total length of 46.468 kilometers. There are 10 stations across the board, of which 6 are elevated stations and 4 are ground stations. Set a single-hole double-lane horseshoe-shaped tunnel, 20 viaducts, distributed in the entire line, the rest are ground lines, the laying of new lines using a new line of seamless technology. Closed-circuit television monitoring system is to provide the station traffic watchman on-site monitoring of the station train station and passenger waiting,