Weight value determination method of highway construction comprehensive evaluation

In order to overcome the large computing and subjectivity of analytical hierarchy process(AHP), this paper put forward a new method of weight value determination in the comprehensive evaluation of highway construction. According to the advanced AHP, the weight values given by every expert of the indices could be received, they were determinated by entropy theory, then the synthetic weight values were received. Applying the method, the weight values of three indices were 0.394 6, 0.329 0 and 0.276 0 under the effect levels of natural environment, which were the influence degrees of water environment, atmosphere environment and sound environment. The computing results show the weight values of the factors can be computed, the subjectivity of AHP is overcome, the method is feasible.