大連地(di)(di)鐵一號線(xian)(xian)(xian)1號線(xian)(xian)(xian)為貫穿(chuan)城市(shi)南(nan)北(bei)方向的骨干線(xian)(xian)(xian)路(lu)(lu)，北(bei)起姚(yao)家，南(nan)至河口，途經華北(bei)路(lu)(lu)、山(shan)東路(lu)(lu)、促(cu)進路(lu)(lu)、西安路(lu)(lu)、中山(shan)路(lu)(lu)、黃(huang)浦路(lu)(lu)等城市(shi)主(zhu)干路(lu)(lu)。一期工程擬(ni)建地(di)(di)鐵正線(xian)(xian)(xian)長(chang)(chang)度(du)21.174km，其中主(zhu)線(xian)(xian)(xian)長(chang)(chang)18.104km，支線(xian)(xian)(xian)長(chang)(chang)3.070km,全部為地(di)(di)下線(xian)(xian)(xian)路(lu)(lu)。線(xian)(xian)(xian)路(lu)(lu)與南(nan)關嶺車輛段(duan)連接線(xian)(xian)(xian)長(chang)(chang)度(du)1.551km，其中地(di)(di)上地(di)(di)下過渡段(duan)長(chang)(chang)度(du)1.013km，高架線(xian)(xian)(xian)長(chang)(chang)度(du)0.390km，地(di)(di)面線(xian)(xian)(xian)長(chang)(chang)度(du)0.148km。