While redlining institutionalized racial segregation in the cities, it was the development of the suburbs via the construction of Route 128 that magnified the effects of segregation by increasing the physical separation between whites and people of color. Municipalities responded to the subsequent in-migration of jobs and people to the suburbs by enacting rigid zoning ordinances. Zoning regulations were created to control density, protect open space, and artificially inflate housing prices. Strict zoning restrictions are still in use today and have a disparate impact on African Americans and Latinos and in particular family households, because they limit affordability and the number of rental multifamily housing opportunities.