New York Turns to Big Data to Solve Big Tree Problem

Trees probably aren't the first thing you think of when someone mentions New York City, but the city has a lot of them. Pruning and maintaining them is a public safety issue, and determining how to prioritize that maintenance is no easy feat. With the help of a nonprofit organization called DataKind, the city's Parks department is leveraging big data analytics for the job.

Tue, June 04, 2013

CIO — NEW YORK CITY--It may seem strange if you don't live in this urban concrete-and-glass jungle, but New Yorkers love their trees. Tourists may flock to Times Square, but New Yorkers know their parks are the city's heart and soul: Central Park in Manhattan, Prospect Park in Brooklyn, Flushing Meadows Corona Park in Queens, Van Cortlandt Park in the Bronx, the Greenbelt in Staten Island and the hundreds of smaller parks and urban green spaces that dot the five boroughs. And, of course, there are the trees that line the streets.

In all, there are roughly 2.5 million trees in New York City. And while the citizens of the city love them, for City of New York Parks & Recreation, they're a big problem, but a problem big data analytics can solve.

New York Turns to Big Data
Brian Dalessandro, data ambassador for DataKind, leads a DataDive on tree pruning data from City of New York Parks & Recreation.

It's not just a dollars-and-cents problem either; it's about lives. In an 11-month-span from 2009 to 2010, four people were killed or seriously injured by falling tree limbs in Central Park alone, including a six-month-old girl who was crushed to death in June 2010. Nearly a year earlier, a 100-pound limb fell from an oak tree in Central Park, fracturing the skull and partially severing the spine of a 37-year-old Google software engineer.

Arborists believe that pruning and otherwise maintaining trees can keep them healthier and make them more likely to withstand a storm, decreasing the likelihood of property damage, injuries and deaths. While this is the conventional wisdom, there hasn't been any research or data to back it up, says Brian Dalessandro, vice president of Data Science at Media6Degrees (m6d), provider of a machine learning-based ad targeting platform, and a Data Ambassador for DataKind that helps unite volunteer data scientists with nonprofit and civic organizations that have big data problems.

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