motor traffic. It is the only ring road to be interlinked with the equally remote Jingha Expressway. This toll expressway ring road links Beijing with Shunyi District, Tongzhou District, Changping District and Daxing District. It is included in the National Trunk Highway System and planned as a branch of G45 Daqing–Guangzhou Expressway, and henceforth receives the designation G4501. 7th Ring Road The G95 Capital Area Loop Expressway, also unofficially known as the 7th Ring Road, is an orbital road of about 1,000 km that encircles the city centre of Beijing, mostly passing through Hebei. Only 38 kilometers passes through Beijing, another 38 km runs through Tianjin and 924 km is in Hebei province. Construction of the road was completed in June 2018 with the final section linking Beijing's outer districts of Tongzhou and Daxing. Others China National Highway 112 is a ring road which runs around Beijing through province of Hebei and municipality of Tianjin, completely outside of Beijing municipality. Although not popularly known as part of Beijing's "ring road system", it has been informally identified as the "8th Ring Road" by some road-trip fans. Inter-ring road connection routes There also exist many connection routes between the ring roads. The ones listed below are all expressways or express routes. Travel on these routes is often surprisingly smooth, as there are no traffic lights on them. 11 routes are under construction as of 2004. Xueyuan Road (N. 4th Ring Road - N. 5th Ring Road, under projection) Badaling Expressway (as of N. 2nd Ring Road, expressway as of N. 3rd Ring Road, constructed) Jingcheng Expressway (as of N. 3rd Ring Road, partially constructed) Airport Expressway (as of N. 3rd Ring Road, portion connecting to N. 2nd Ring Road under construction as an express route) Yaojiayuan Road (E. 3rd Ring Road - N. 5th Ring Road, connecting to projected Jingping Expressway, under projection) Tonghui River North Road (E. 2nd Ring Road - E. 4th Ring Road, under construction as an express route) Jingshen Expressway (as of E. 4th Ring Road, portion connecting to E. 2nd Ring Road under construction) Jingjintang Expressway (as of E. 3rd Ring Road, constructed) Puhuangyu Road (as of S. 2nd Ring Road to S. 5th Ring Road, under construction/projection) Jingkai Expressway (as of S. 2nd Ring Road, expressway as of S. 3rd Ring Road, constructed) Fengbei Road (W. 2nd Ring Road - Jingshi Expressway (after Yuquan Road exit),