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外文文献
structural Design of Asphalt Pavement for
Low Cost Rural Roads
1. College of Transportation, Southeast University, Nanjing 210b9b, China 2. College of Civil Engineering, Nanjing University of Technology, Nanjing 210009, China
In developing countries，rural road construction is mostly cumbered by
shortage of funds. Engineers concerns most in rural areas is how to build roads which not only cost less but also meet the traffic demands. Especially in vast rural areas of China, there are a great variety of transportation patterns, and the traffic composition is very complex. Compared with other countries，the traffic composition in China rural areas have its own features. Therefore，there is no experience about the rural roads construction for reference. In recent years，the central government of China has increased the strength for rural road construction. At the same time，a lot of researches about rural road construction have been done by researchers in China, and some conclusions about china rural roads have been made. In the authors' opinion，the selection of the pavement structure material is the key measure to reduce the construction cost of rural roads after the route has been determined. Compared with concrete pavement，asphalt pavement relatively costs less and is the first choice for rural roads in China. And then，according to the research achievements about rural roads construction，the authors have done some preliminary researches on the structure design for low-cost asphalt pavements for rural roads.
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1 Traffic Composition of Rural Road
Rural roads include county roads，tow