Route Description G42 Shanghai–Chengdu Expressway

1 route description

1.1 shanghai
1.2 jiangsu
1.3 anhui
1.4 hubei
1.5 chongqing
1.6 sichuan

route description
shanghai

in shanghai municipality, g42 eight-lane expressway concurs g2 beijing-shanghai expressway entire length, , has speed limit of 120 km/h (75 mph). expressway begins @ wuning road interchange in shanghai middle ring road, traveling eastbound. after intersection s20 shanghai outer ring expressway in jiading district, expressway becomes tollway @ jiangqiao toll plaza. in qingpu district, intersects g15 shenyang-haikou expressway via partial cloverleaf interchange. @ anting town, g42 connects g1501 shanghai ring expressway through brief connector , 2 trumpet interchanges, intersects g1501 via overpass , enters kunshan, jiangsu.

jiangsu

the expressway crosses yangtze river on third nanjing yangtze bridge

the g42 eight-lane expressway throughout province of jiangsu , has maximum speed limit of 120 km/h (75 mph). run concurrently g2 beijing-shanghai expressway until huishan district, wuxi, splits northeast-bound g2 , continues east. expressway bypasses downtown kunshan , meets suzhou ring expressway (concurs jiangsu s5 changzhou-jiaxing expressway). expressway travels northwest downtown suzhou , intersects g15w changshu-taizhou expressway @ wuzhong district, suzhou. there expressway turns north , again encounters suzhou ring expressway (jiangsu s9 suzhou-shaoxing expressway) before entering wuxi. in wuxi, expressway intersects jiangsu s19 taihu lake ring expressway before bypassing downtown, , splits g2 @ tongjiang avenue, continuing northwest. g42 connects jiangsu s48 wuxi-yixing expressway northwest of downtown wuxi, , meets jiangsu s38/anhui s24 changshu-hefei expresswayin wujin district, changzhou. running north downtown changzhou, g42 meets jiangsu s39 jiangdu-yixing expressway in xinbei district, changzhou. there, g42 travels west, bypassing danyang , connecting zhenjiang via jiangsu s86 zhenjiang auxiliary. after meeting g4011 yangzhou-liyang expressway in dantu district, zhenjiang, g42 continues westbound , enters nanjing.

in nanjing, g42 first intersects southeast portion of g2501 nanjing ring expressway, follows partial cloverleaf interchange near purple mountain, qixia district interchange northbound g36 nanjing-luoyang expressway. entire length south yangtze river in nanjing, g42 concurs jiangsu s001 highway , intersects g25 changchun-shenzhen expressway near baixia district. @ huashenmiao interchange, expressway interchanges jiangsu s55 nanjing-xuancheng expressway/s88 airport expressway. before crossing yangtze river, g42 connects north-south spur of g4211 nanjing-wuhu expressway , concurs g2501 again. through traffic carried across yangtze river third nanjing yangtze bridge, , g42 splits g2501 @ interchange east of laoshan national forest park, g42 turns west , concurs g40 shanghai-xi expressway remaining lengths in jiangsu. @ town of zhouzhuang, pukou district, expressway becomes four-lane expressway , enters anhui province @ quanjiao county.

anhui

in anhui province, g42 concurs g40 until huoqiu county, lu an, , 4-lane limited-access expressway except 42.64 km (26.50 mi) section between feidong county , hefei, has been expanded eight-lane expressway in 2009. expressway has maximum speed limit of 110 km/h (68 mph) east of hefei, , 120 km/h (75 mph) west, except section between jinzhai county , anhui-hubei border, 100 km/h (62 mph) speed limit (80 km/h (50 mph) in tunnels) enforced due mountainous terrains. concurs g40 southwest bound. @ partial cloverleaf interchange east of feidong county, hefei, g42 turns north , concurs g3 beijing-taipei expressway , g4001 hefei ring expressway briefly before splitting g3 , heads west again. here, g42 continues concur g4011 until changfeng county, hefei, continues westbound lu an. expressway intersects g35 in yu district, lu , splits g40 @ huoqiu county, lu an. there, g42 heads southwest dabie mountains. portion of expressway follows anhui s210 highway corridor, bypasses meishan reservoir south, , characterized expansive bridges , lengthy tunnels. @ village of changlingguan pass, expressway crosses anhui-hubei border , enters macheng, hubei province.

hubei

the expressway in hubei

the expressway under construction in hubei province west of yiling district, yichang. completed portion of g42 4-lane limited access tollway, speed limit of 100 km/h (62 mph) entire length, except tunnels, in 80 km/h (50 mph) speed limit enforced. expressway enters hubei @ town of muzidian , continues westbound dabie mountains tunnel. length of 4,900 m (16,100 ft), dabie mountains tunnel longest tunnel on g42 east of wuhan. g42 heads southwest, bypassing macheng , intersects g45 daqing-guangzhou expressway west of downtown macheng. continuing southwest, expressway concurs hubei s3 wuhan-macheng expressway , turns west on g4201 wuhan ring expressway in xinzhou district, wuhan, concurs briefly g70 fuzhou-yinchuan expressway. through traffic carried across yangtze river again via yangluo yangtze river bridge. @ intersection hubei s2 wuhan-xiaogan expressway, g42 splits g70, concurs s2 northwest bound, , continues southwest. meets hubei s18 airport expressway in huangpi district, wuhan , g4 beijing-hong kong-macau expressway in dongxihu district, wuhan. @ intersection g4, g42 splits g4201 , continues westbound. intersects hubei s49 suizhou-yueyang expressway in tianmen , g55 erenhot-guangzhou expressway southwest of downtown jingmen.

the g42 heads south reach hydropower city of yichang in yiling district, terminates @ intersection g50 shanghai-chongqing expressway, hubei s48 wuhan-yichang expressway (which becomes hubei s58 3 gorges expressway northwest of downtown yichang), , hubei s63 laohekou-shishou expressway.

chongqing

the expressway crosses spectacular daning river bridge in chongqing

the g42 unfinished in chongqing. temporary eastern terminus @ wushan interchange in wushan county. there g42 continuous throughout chongqing. due restraints of difficult terrains, maximum speed on expressway has been set @ 80 km/h (50 mph). expressway runs parallel yangtze river behind mountains of 3 gorges. @ gujiaba interchange, g42 intersects non designated wanzhou-kai county expressway. heads south , bypasses wanzhou district. @ qinggangba interchange, g42 turns westbound , intersects chongqing-yibin expressway, spurs downtown of wanzhou , becomes g318 national highway. g42 travels southwest until encountering g50 again in taiping interchange, dianjiang county. expressway travel westbound , enters mingyue mountain tunnel, through crosses chongqing-sichuan border , enters sichuan province.

sichuan

in sichuan province, g42 four-lane expressway speed limit of 80 km/h (50 mph), except few sections in nanchong , guang an, 100 km/h (62 mph) speed limit enforced. @ linshui county, guang an, expressway encounters g65 baotou-maoming expressway , turns northwest bound. bypasses guang , continues northwest until intersecting unsigned northbound nanchong ring expressway , southbound g75 lanzhou-haikou expressway in nanchong. expressway continue southwest bound , meet g93 chengdu-chongqing ring expressway in chuanshan district, suining, , bypasses suining north of downtown. crosses fu river , intersects unsigned huimazhen-suining expressway. there, expressway continues city of chengdu, intersects g4201 chengdu ring expressway in longquanyi district @ luoshiba interchange , proceeds east 3rd ring road. g42 terminates after passing east 3rd ring road , dipping briefly onto east erxianqiao road.