But peace and quiet were not the aims of the rezoning that paved the way for Hudson Yards — spurring economic activity was the goal.

The administration of former Mayor Michael R. Bloomberg believed the development would add so much to the city’s economy that it justified the unusual step of having the city pay for an extension of the state-run subway system. Mr. Bloomberg’s aides argued that the development would generate enough additional tax revenue and other fees to cover the debt payments on $3 billion in bonds.

The city has paid more than $350 million in interest on those bonds, but Daniel L. Doctoroff, a former deputy mayor, said that was a small down payment on a plan that could generate nearly $30 billion in taxes and other payments to the city over the next 30 years. The overall economic impact of the entire redevelopment will amount to a multiple of that sum, which he said was derived from a detailed analysis conducted by him and Michael N. Meola, a real estate consultant.

Mr. Meola said the conclusion was that the city would not have to subsidize any more payments to the Hudson Yards bondholders and that as soon as 2019, the city will receive more in annual payments from developers in the Hudson Yards district than the $153 million a year it owes in interest on the bonds.