International, regional and subregional organizations can also contribute by coordinating efforts on developing methodologies, collecting data and providing technical assistance to improve migration data, including those required to monitor migrationrelevant Sustainable Development Goal indicators and the implementation of the global compact on migration. As an increasing number of people live in cities, well-managed urbanization can help cities to reap the benefits of agglomeration while minimizing environmental degradation and other adverse impacts of urban growth. Urban planning is critical for the sustainable development of an urban infrastructure for providing access for all, especially the urban poor, to essential services, including safe water and sanitation, health care, education and adequate housing.