Limitations of existing park quality instruments and suggestions for future research

Public parks are critical urban infrastructures offering health, environmental, social, and cultural benefits to people. However, the idea of park quality has lacked a clear operational definition and normative standard for measurement. We provide critical insights into existing park quality instruments and advocate for an alternative approach. First, due to the significant diversity in parks, inherent ambiguity and subjectivity in the idea of quality, and previous instruments' inconsistent operationalizations of park quality, we recommend that future research shift its focus from creating instruments for universal application and standardized measurement to developing an inventory or list of park quality indicators that researchers and practitioners can selectively choose for their unique park contexts. Second, through our multidisciplinary examination, we identify five limitations in existing park quality instruments: (1) lack of attention to the histories of marginalized communities, (2) overemphasis on physical activities and public health, (3) lack of attention to ecological function and biodiversity, (4) lack of subjective measurements, and (5) insufficient consideration of multiple parks or a park system. Overall, a more flexible and site-specific approach to park quality measurement and the adoption of new indicators of park quality are expected to accomplish a more comprehensive and fairer assessment of park quality, contributing to park equity research and practice.