The paper which is based on the practicality of our country's freeway construction at present and the need of freeway net's heavy repair, integrality calculates the maintain expenses of whole freeway net, brings forward the way of solving the freeway net's mixing sites which is not a discrete or a continuous multiple source location problem. The paper which is based on the former research of the problem. mostly considers four key factors whose influence to the maintain cost of freeway net is the mos...
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