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The paper explores the characteristics of coal-based cities transition degree. Based on the concept of transition degree, this paper constructs the evaluation index system of urban transition degree in Tongchuan City, calculates and standardizes the rate of change based on the relevant raw data from 2006 to 2015 in Tongchuan City, and uses the analytic hierarchy process and entropy method to determine the evaluation index weights, with using the weighted sum to calculate the degree of transition index. Tongchuan transformation system and transformation indicators have different effects on the transformation degree. Tongchuan City, the comprehensive index of economic transformation showed a "W" -shaped volatility characteristics.

Evaluation of Economic Transformation in Coal Resource Type City - A Case Study of Tongchuan City