Evaluating Brownfield Redevelopment using an Modified Multilevel Grey Method - A Case Study of Xi’an

Abstract

A novel multiple criteria decision analysis (MCDA) method is designed for comparing and ranking resolution solutions to a brownfield redevelopment project. In particular, an MCDA technique called the modified multilevel grey evaluation method is developed using concepts from grey systems theory, entropy and the analytical hierarchical process (AHP). To obtain weights for the range of criteria and sub-criteria used to assess and compare the resolution solutions, results obtained using AHP and an entropy technique are combined. In order to reflect uncertainty in the evaluation scores of the resolutions according to the sub-criteria, a grey systems class is employed to appropriately transform the scores. Subsequently, the evaluation method for the resolutions along with the combined weights is used to rank the resolutions. To demonstrate how this new methodology can be conveniently used in practice and provide valuable insights for aiding decision making, it is applied to a brownfield site in Xi'an, China, created by a former chemical factory.

Spatial Identification and Redevelopment Evaluation of Brownfields in the Perspective of Urban Complex Ecosystems: A Case of Wuhu City, China

“…In this study, a fuzzy comprehensive evaluation method based on fuzzy set theory is used to precisely convert natural language into mathematical language to solve various difficult to quantify and non-deterministic problems. The integration of AHP and fuzzy comprehensive evaluation can be used to solve imprecise problems containing multiple criteria and uncertainties in typical decision-making processes [ 35 ].…”