*Article* **Evaluation of a Chongqing Industrial Zone Transformation Based on Sustainable Development**

**Xiaoyan Zhang 1,2,3,\*, Yuehao Cao 4, Mingfang Tang 1,\*, Enyi Yu 1, Yiqun Zhang 1,2 and Gang Wu 1,2**


**Abstract:** With rapid urban expansion and the increasing demand of industrial development, the existing industrial zones require transformation and upgrading to achieve the sustainable development of society, economy, and environment. The green transformation of industrial zones lacks overall theoretical guidance and a systematic evaluation system. This research aims at developing effective methods to integrate the elements of existing industrial zones within the same framework for the purpose of optimizing the sustainability of the whole system. In this study, the connotation of a composite ecosystem in existing industrial zones was analyzed using the theory of sustainable development, and an evaluation model of existing industrial zone was constructed. Taking the green transformation of Chongqing Gepai Wire and Cable Co., Ltd. as an example, the sustainability of land, architecture, industry, ecology, landscape, culture, and other elements has been fully considered in the transformation process. Through the evaluation results, it can be seen that the sustainability of all aspects of the industrial zone have been effectively improved, which is 16% to 40% higher than that before the transformation. The research results illustrate that, in the process of the green transformation of industrial zones, using interdisciplinary methods to select indicators and dynamically evaluate the sustainable development of industrial zones can systematically and comprehensively consider the elements of industrial zones and promote the role of various majors in the transformation of industrial zones.

**Keywords:** existing industrial zone; green transformation; sustainable development; evaluation model
