大(da)連地鐵一號(hao)線(xian)(xian)(xian)1號(hao)線(xian)(xian)(xian)為貫穿城(cheng)市南北方向(xiang)的骨干(gan)線(xian)(xian)(xian)路，北起(qi)姚家，南至河口，途經華北路、山東路、促進路、西(xi)安路、中(zhong)山路、黃浦路等城(cheng)市主(zhu)干(gan)路。一期工程擬(ni)建地鐵正線(xian)(xian)(xian)長(chang)度(du)21.174km，其(qi)(qi)中(zhong)主(zhu)線(xian)(xian)(xian)長(chang)18.104km，支線(xian)(xian)(xian)長(chang)3.070km,全部為地下線(xian)(xian)(xian)路。線(xian)(xian)(xian)路與南關(guan)嶺車輛段連接線(xian)(xian)(xian)長(chang)度(du)1.551km，其(qi)(qi)中(zhong)地上地下過(guo)渡(du)段長(chang)度(du)1.013km，高架線(xian)(xian)(xian)長(chang)度(du)0.390km，地面(mian)線(xian)(xian)(xian)長(chang)度(du)0.148km。