基于群決策與證據(jù)理論的重慶地區(qū)生態(tài)城指標(biāo)體系及決策模型研究
[Abstract]:The rapid development of China's urbanization process is facing a huge challenge, the construction of an ecological city is the only way to achieve sustainable development. The eco-city index system is a set of measurable parameters that describe the content and scope of eco-city construction and reflect the direction and emphasis of eco-city development. Scientific index system and weight distribution are the basis and prerequisite for the rational evaluation of ecological city and the correct guidance for the development of ecological city. The function of eco-city index system is not limited to evaluation, its more meaningful role should be to guide the construction and development of eco-city. The decision model of eco-city development is established according to the index system, so as to make the optimal decision on the development of ecological city and make its development accord with the requirements of the index system, which should be meaningful and meet the needs of ecological city development. In this paper, several eco-city index systems at home and abroad are compared and studied. According to the present situation of Chongqing's development and its own characteristics, the expert consultation method is used to establish the evaluation index system framework of Chongqing's eco-city. Then the expert weight allocation opinions are obtained by questionnaire, 140 judgment matrices are constructed and processed by AHP, and the first class index and 20 relative weight relation distribution functions of six secondary indexes are obtained. By introducing the idea of consistency analysis in group decision making, the similarity coefficients between two pairs of weight distribution functions are calculated in 1995, and seven similar matrices of order 20 are constructed, and the reliability of each expert in the weight distribution of each index is calculated. As the expert weight in the gathering stage of group expert opinion, the distribution function of 20 experts is fused to determine the weight system of eco-city evaluation index system. Finally, according to the established ecological city evaluation index system, the decision model of ecological city development scheme is established by evidence theory, and the ability of evidence theory to express uncertain information is used. The model can make scientific and reasonable decision under incomplete information, and the model is verified by an example. The evaluation index system of ecological city in Chongqing is divided into three levels. It is composed of land resource utilization and space, construction, resources and environment, traffic, industry, urban operation and management. The total number of indicators is 59. Based on the weight model of this paper and the opinions given by 20 experts, the relative weight relations of various indexes in the evaluation index system of Chongqing eco-city are calculated. "Building" and "resources and environment" account for 27.726.9 of the total weight of the system respectively, which is the absolute focus of the system, and the use of land resources and space are also given greater weight, which reflects the importance attached to land resources by "mountain cities" in Chongqing. For secondary indicators, building energy conservation, site development, green industry, green community construction, public transport, renewable energy use, regional natural environment and so on have been given a relatively large weight. The DS/AHP decision model established in this paper can be well applied to the decision making of eco-city development scheme, while the uncertainty of decision can be expressed by individual decision makers under incomplete information. After combining evidence from different decision making individuals, the uncertainty of decision can be significantly reduced, and the decision based on trust and likelihood can be more consistent, thus making the final decision more definite.
【學(xué)位授予單位】:重慶大學(xué)
【學(xué)位級(jí)別】:碩士
【學(xué)位授予年份】:2014
【分類號(hào)】:TU984.115
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