Comprehensive evaluation of low-carbon city in China using intuitionistic fuzzy set theory

Low carbon city is the direction of the development of city in the future. Firstly, this paper constructed the comprehensive evaluation index system of the low carbon economy city that including six primary indexes and 12 secondary indexes by summarizing the recent research of low-carbon connotation and low-carbon evaluation index. These indexes are low-carbon economy, low-carbon energy, low-carbon construction, low-carbon traffic, low-carbon society and low-carbon policy. And then, we discussed the development of low-carbon economy of Beijing, Shanghai and Baoding by using intuitionistic fuzzy set approach for urban low-carbon economy comprehensive evaluation index system. The result that Beijing first and Shanghai second and the last is Baoding, that have important practical significance to regulate and guide the construction of low-carbon cities.