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　　怎??(zen)么??(me)辦??(ban)？??G3銅??(tong)陵??(ling)長??(chang)江??(jiang)公??(gong)鐵??(tie)大??(da)橋??(qiao)在??(zai)設(shè)??(she)計??(ji)中?(zhong)??，將??(jiang)斜??(xie)拉??(la)橋??(qiao)和??(he)懸??(xuan)索??(suo)橋??(qiao)兩??(liang)種??(zhong)橋?(qiao)型??(xing)有??(you)機??(ji)結(jié)??(jie)合??(he)??，既??(ji)保??(bao)留??(liu)了??(le)斜??(xie)拉??(la)橋??(qiao)剛??(gang)度??(du)大??(da)的??(de)優(yōu)??(you)勢??(shi)??，又??(you)利??(li)用??(yong)了??(le)懸??(xuan)索??(suo)橋??(qiao)跨??(kua)越??(yue)能??(neng)力??(li)強??(qiang)的??(de)特??(te)點??(dian)??。??同??(tong)時??(shi)??，通??(tong)過??(guo)采?(cai)用??(yong)交??(jiao)叉??(cha)合??(he)龍??(long)方?(fang)案??(an)??，節(jié)??(jie)省??(sheng)3到??(dao)6個??(ge)月??(yue)工?(gong)期??(qi)??，既??(ji)實??(shi)現(xiàn)??(xian)了??(le)技??(ji)術(shù)?(shu)與??(yu)工??(gong)期??(qi)的??(de)雙??(shuang)重??(zhong)優(yōu)??(you)化??(hua)??，也??(ye)成??(cheng)就??(jiu)了??(le)世??(shi)界??(jie)首??(shou)座??(zuo)雙??(shuang)層??(ceng)斜??(xie)拉??(la)—懸??(xuan)索??(suo)協(xié)??(xie)作??(zuo)體??(ti)系??(xi)大??(da)橋??(qiao)???！　⊙??(yan)江??(jiang)干??(gan)線?(xian)公??(gong)路??(lu)是??(shi)長??(chang)江??(jiang)經(jīng)??(jing)濟??(ji)帶??(dai)綜??(zong)合??(he)立??(li)體??(ti)交??(jiao)通??(tong)走??(zou)廊??(lang)的??(de)重??(zhong)要??(yao)組??(zu)成?(cheng)部??(bu)分??(fen)??。??據(jù)??(ju)交??(jiao)通??(tong)運??(yun)輸??(shu)部?(bu)公??(gong)路??(lu)局??(ju)介??(jie)紹??(shao)??，截??(jie)至?(zhi)去??(qu)年?(nian)底??(di)??，長?(chang)江??(jiang)經(jīng)??(jing)濟?(ji)帶??(dai)區(qū)??(qu)域??(yu)公??(gong)路??(lu)網(wǎng)??(wang)總??(zong)里??(li)程??(cheng)達??(da)244.6萬??(wan)公?(gong)里??(li)??，其??(qi)中??(zhong)干??(gan)線?(xian)公??(gong)路?(lu)總??(zong)里??(li)程??(cheng)達??(da)30.9萬??(wan)公??(gong)里??(li)??，高??(gao)速??(su)公??(gong)路??(lu)通??(tong)車??(che)里??(li)程??(cheng)約??(yue)7.3萬??(wan)公??(gong)里??(li)??。橫?(heng)貫??(guan)東??(dong)西??(xi)的??(de)沿??(yan)江?(jiang)高??(gao)速??(su)公??(gong)路??(lu)主??(zhu)通??(tong)道??(dao)已??(yi)初??(chu)步??(bu)形?(xing)成??(cheng)??，已??(yi)建??(jian)成?(cheng)通??(tong)車??(che)里??(li)程??(cheng)超??(chao)過??(guo)3500公??(gong)里??(li)??，建??(jian)成??(cheng)率??(lv)達?(da)80%??。。