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京港澳高速公路(G4)是国家高速公路网(7918网)中的一条射线,自北向南连接北京、石家庄、郑州、武汉、长沙、广州、香港、澳门等8个中心城市。原京港澳高速公路京石段起自冀京界向南经保定到石家庄,沿途经过12个县市区,双向4车道,一般路段路基宽度27m,是河北省最主要的南北交通干线。本项目为原京石段的改扩建,路线全长224.678km,其中将原有185.843km高速公路由4车道改为8车道;新建38.835km 8车道高速公路;路基宽42m,设计车速120km/h,全线设服
The Beijing-Hong Kong-Macau Expressway (G4) is a ray of the National Expressway Network (7918), connecting 8 central cities in Beijing, Shijiazhuang, Zhengzhou, Wuhan, Changsha, Guangzhou, Hong Kong and Macau from north to south. The original Beijing-Hong Kong-Macao Expressway Jingshi section from the Beijing Jingdian to the south of Baoding to Shijiazhuang, along the 12 counties and cities along the way, two-way four lanes, the general section of the roadbed width of 27m, Hebei Province is the main north-south traffic trunk. This project is a reconstruction and expansion of Jingshi section with a total length of 224.678km, of which, the original 185.843km expressway is changed from 4 lanes to 8 lanes; 38.835km 8-lane expressway is newly built; the subgrade is 42m wide; the design speed is 120km / h; All-round set service