Development, Characteristics, and Implications of Landscape Performance Evaluation of Greenways in the United States

Greenways offer sustainable benefits at ecological, cultural and economic levels, enhancing human well-being. Landscape performance assessment is a crucial task for evaluating these benefits and guiding the sustainable development of greenways. To clarify the characteristics and roles of landscape performance in the development of the US greenway system, text analysis was conducted using KH Coder, and a meta-analysis was performed on three databases to select research cases on greenway performance evaluation in the US. The results show that the evaluation of social performance is higher than that of ecological and economic performances, and the data related to economic performance is more difficult to obtain. The efficacy of greenway projects varies with the construction stage and is influenced by social background and target benefits. The sustainability characteristics of high co-occurrence relationships are key to guiding greenway performance assessment, which helps in selecting indicators for evaluating greenways and providing references for improving planning directions. In the future, innovative technical means tailored to the goals of greenway landscapes should be used for performance evaluation.