Increasing density in the neighborhoods surrounding the new subway stops would bring more affordable, transit-adjacent housing to East Harlem and boost ridership.
Nicholas D. Bloom describes the changes he deems necessary for New York's Second Avenue Subway to have the most positive impact on the surrounding community. "The Second Avenue Subway three-stop extension will likely become the nation’s most expensive urban mass transit project. Still, it will fail to benefit many city residents unless significant zoning changes are made to the neighborhood," writes Bloom.
"High-quality planning and significant upzoning could boost ridership on the new line and remake East Harlem into a place that more comfortably accommodates current and future residents–of all income levels." Bloom points to the first phase of the Second Avenue line, which serves the affluent East Side, a neighborhood "characterized by large apartment buildings permitted primarily by R8 and R10 zoning." Thanks to this high density, the line attracted 200,000 subway riders per day upon its opening.
However, "Extending the subway line in East Harlem along Second Avenue between 96th Street and 125th Streets is a different story. The neighborhood's threadbare low-rise tenements remain a dominant feature." Upzoning these neighborhoods, Bloom argues, would bring more housing near transit and boost ridership. "The rezoning should be at levels similar to the dense neighborhoods (R8-R10) below 96th Street on the Second Avenue Subway corridor. Only much greater residential zoning in East Harlem can attract developers and drive the creation of sufficient market housing to cross-subsidize thousands of additional low-cost units in East Harlem."
Bloom writes, "Leaving current zoning/density in advance of the subway extension is a vote for market-driven gentrification. Big money will inevitably follow the subway lines into East Harlem. Left to their own devices, developers will add few affordable units in new buildings permitted under current zoning."
FULL STORY: How the Next Phase of the Second Avenue Subway Can Build a Better East Harlem
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