Measuring and evaluating urban sustainability

The concept of sustainable development is closely related to that of sustainability assessment, as it implies a process of evaluation of progress made over time. In this context, indicators present themselves as a key and fundamental element for measuring and evaluating the specific issues that compose the different phenomena to be monitored. Indeed, they constitute the tool that can provide qualitative or quantitative data and information needed to identify the performance, progress, and weaknesses of plans, projects, and policies. In this context, the paper investigates the potential differences that the indicator can take in the differing purposes of measurement and evaluation in the context of urban sustainable development. A literature review is therefore conducted to gather and systematize knowledge so that it can be useful for reflections on sustainable urban assessment. The paper reports the results of the analysis concerning the context of measurement and evaluation, highlighting the differences or similarities from a conceptual and operational point of view.