From the Gotham Gazette:
Despite daily references to the "diversity" of New York, the city remains one of the most residentially segregated cities in one of the most residentially segregated major metropolitan areas in the country. Residential racial segregation underlies virtually every other major societal disparity that exists, including disparities in education, health care and employment. But the administration has not developed concrete policies to reduce segregation. Indeed, the mayor’s "New Housing Marketplace" makes no reference either to the existence of residential segregation or to any strategy targeted at overcoming that segregation.
The mayor has not pushed for mandatory inclusionary zoning, which requires developers to include affordably priced apartment in their development. Some advocates believe this, when combined with affirmative marketing, can be crucial in combating segregation. The effectiveness of voluntary inclusionary zoning, which the mayor has embraced, is the subject of ongoing debate.
Existing city policy actually perpetuates segregation in ways similar to what courts have found to be illegal in cases involving other jurisdictions. Every time a new development brings apartments to market, current residents of the community district in which the development is located receive a preference for 50 percent of the new homes. Because so many community districts are highly segregated, the preference process, by definition, skews opportunities, perpetuating more segregation than would be the case if openings were equally open to all.