Prospect Park will be permanently car-free in January, Mayor Bill de Blasio announced Monday morning.

The car-free change is scheduled to take effect Jan. 2, the mayor said in a press conference.

It comes following the park's first full car-free summer. During that time, the city studied effects of possibly making it permanent.

NY1 caught up with park-goers, who said they are mixed on the decision.

Where you stand on the matter may depend on whether you drive or run through the park.

"I don't feel as safe essentially. I don't want to think about actually getting hit by a car," said one runner.

"Because it will kill — first of all, it will probably cost me a half-hour for my morning drive, and then there will be tremendous traffic around the whole area," said one driver.

The city's transportation commissioner said cars are not getting the boot immediately, because she wants to consider traffic signal changes in nearby neighborhoods in the hope of easing congestion.

"That's going to take a little more time, so we are going to wait until the new year," Polly Trottenberg said.

It was the kickoff announcement for the mayor's week in Brooklyn, the final borough that City Hall has decamped to as part of its "City Hall in Your Borough" initiative.

The mayor popped back to Manhattan for the NYPD's graduation ceremony later in the day.

He had a noisy return to Brooklyn, visiting P.S. 1 in Sunset Park, the only public school in the borough with a cafeteria that exclusively serves vegetarian meals.

Starting in the spring, 15 Brooklyn schools will go meatless on Mondays.

The mayor already spends a good deal of his time in Brooklyn. Now, he will be here all week.