When it comes to car buying, 52% of people don’t even know what make or model they want to buy before they arrive at a dealership. There is a pretty good chance that those dealerships, businesses and even parks, however, know much more about you.

New York City’s Brant Park, right next to the New York Public Library, is not only collecting valuable data and information from its visitors, but it’s also using that information to sell to advertisers.

According to AdvertisingAge, the Bryant Park Corporation is using visitor data in sales pitches to potential sponsors. This public park, which is privately owned, is not the only park to do so, either.

“At Bryant Park we’re very obsessed with numbers and data,” said brand relations manager for the BPC Matt Castellan.

Bryant Park found that its average visitor is between 24 and 44 years old. They also determined that the average visitor would likely go to Macy’s, PetSmart and Bank of America. The Park knows what kind of people enjoy yoga, what HBO programs its visitors enjoy, and even what kind of holiday shopping they’ll take part in.

The data is gathered through the location data attached to mobile devices. When a park visitor goes into a car dealership, restaurant or any other business, Bryant Park uses the information people give access to when they download free apps to find when they’re at those specific locations.
The Guardian reports that the legendary Hyde Park in London uses the same type of mobile data collection to influence commercial businesses.

“Big data has proven to be a highly effective method of improving infrastructure and public services,” said an EE spokesman. “This would include providing anonymous and retrospective network usage data of large groups of people.”

Brant Park is looking for sponsorship dollars from companies such as lawn care brands, car dealerships, home improvement retailers and even holiday-related businesses.