2.4. The weights associated with the low-carbon evaluation indexes for tourist attractions
By consulting experts, we developed a low-carbon evaluation index system for tourist attractions. This system evaluates the scenic environment, the tourist facilities available, the manage- ment system used and the attitudes of the actors involved. These four second-level indexes are divided into third-level indexes and fourth-level indexes. The weight of each index is determined using the AHP and the third round of questionnaires, which were given to 29 experts. The experts were asked to judge the degree of impor- tance of each index and to grade each index using hierarchical pairwise comparisons. The weight of each index was thus determined.
(1) Building a judgment matrix
In AHP, to quantify policy-making judgments, a judgment matrix must be constructed using the 1e9 scale method according to the hierarchy and the quantity of the indexes.
(2) Consistency test
Data were input into the mceAHP software to construct the model for obtaining the weight of each element in the matrix and for determining whether the matrix is consistent. It was deter- mined that all matrices are consistent.
(3) Determining the weights of the low-carbon evaluation indexes for scenic areas
Of the 29 copies of the questionnaire that were distributed, 20 were returned (for a response rate of 69%). The data from the questionnaires were processed using arithmetic averaging. The mceAHP software was again used to process the data and deter- mine the weight of the indexes from Table 2.