It is understood that the Great Outer Ring Road Project mainly includes: the North Outer Ring Road passes through the planning main road of Bianhe New City from Liming Avenue to the east, passes through the national highway G206 and then extends along the county road X043 to the East Outer Ring Road, with a total length of about 14.43 km; The East Outer Ring Road crosses the Xin Bian River from the North Outer Ring Road to the north, connects with Jintai No.8 Road in the Chemical Industry Park via Xu Lu No.2 and provincial road S303, and connects with the South Outer Ring Road in beijing-shanghai railway to the west, with a total length of about17.18km; The south outer ring passes through the coalfield goaf from beijing-shanghai railway to the west, and then connects the west outer ring and the outer ring of the shoes and clothing industrial park, with a total length of about 9.85 kilometers; The west outer ring turns from the south outer ring to the north, passes through the existing Liming Avenue (Outer Ring Second Road-Tanghe Road) and extends to connect with the north outer ring. It has been built for about 9 kilometers and is about 5.205 kilometers to be built. According to reports, there are many water systems along the project, mainly including the following water systems: approach river, Tuohe river and Xiaohe river. In addition, the North Outer Ring Road and the South Outer Ring Road cross the railway respectively, and both need to build new bridges. 0/9 bridges across the line/KLOC-0, which are constructed according to the standards of urban first-class main roads. Motorways are two-way and eight-lane, with asphalt concrete pavement. The investment budget of the outer ring is 3 1 100 million yuan, and the construction period is two years.