Learned from the Qinghai Provincial Department of transportation, to alleviate the increasing traffic pressure, provide efficient transportation turnover support for tourism development in Qinghai, Qinghai, Xining to support a plan to implement this highway expansion project.
The existing Ning mutual level road length of 29.2 kilometers, because at that time the road design parameters used for the low value of the first class highway, and there are few intersections, the traffic capacity is nearing saturation, the tourist season and the peak of the road service level is low, has been unable to meet the future demand of flux.
Ning Yi first highway expansion of the use of in situ expansion and the new way, which starts from the Tu Tu Autonomous County of the town of Tong Tong Dong Village section of the in situ expansion, Dong to the end of the new section of the use of new. The starting point is located in the line rhyme ieguchi intercommunication and cooperation Road intersection, north across the Beijing Tibet Expressway and Lanqing railway, after wearing a new high-speed LAN, across the river to the north by Sha Tang, material storage, total village, Tang Chuan Zhen Dong Zhai Cun, deviate from the old in the new East, along the hillside, across the large flat cross the road turns to the north in the village, north along the hillside across the mountains, across the river to the Northwest after setting interchange to highway connecting with haiyan. Route length of 42.17 km, of which an extension of the length of the area in the expansion of 25.2 km, the new section of the length of 16.97 km.
Ning highway expansion project are the starting point to the mutual interoperability east section will adopt a two-way six lane Expressway standard, the design speed of 100 kilometers per hour; mutual interchange to the east end point of building a two-way four lane Expressway standard, the design speed of 80 kilometers per hour.
