The CPI also helps to define targets and goals that can support the formulation of evidence-based policies, including the definition of city visions and long-term plans that are both ambitious, and measurable. This framework allows for periodic assessments of the various dimensions of urbanization and the overall conditions of cities. Still, it is for governments to define the scope, frequency and form of the monitoring and reporting, enabling policy-makers to measure progress and identify areas for improvement, including capacity-building needs. Such monitoring will also enable public authorities to identify potential setbacks and constraints, thus pre-empting unintended consequences. In order to avoid overload and duplication in national and local monitoring and reporting, including the potential for double counting, it is recommended to adopt common metrics and methodologies with a unified global platform. The CPI works as a support for multi-scale decision-making, connecting the city with the region and the overall country.