A neighborhood is divided over a major roadway in Greenpoint, Brooklyn.

“So many people that this flawed plan to make McGuinness Boulevard safer is actually going to the make the rest of Greenpoint much less safe,” said Greenpoint resident Lynn Pinezich.

A new plan by the Department of Transportation aims to redesign McGuinness Boulevard — a mile-long, four-lane street, which runs between the Brooklyn-Queens Expressway and the Pulaski Bridge.

The plan would remove one lane of traffic in either direction and install parking-protected bike lanes — a project that the DOT says has worked on other major streets.

“I don’t understand why the bike lane is running all the way down a street with loading docks, driveways, people coming and going, car doors opening,” said Pinezich. “And there’s no wiggle room for the one lane of traffic.”

Some 300 opponents of the so-called McGuinness “Road Diet” aired their concerns and frustrations with the DOT and elected leaders in Greenpoint Thursday morning.

“Let’s save the businesses that are here, that wanna be here, that made that investment, that employ people from this community. Let’s save those businesses and acknowledge that they matter. They matter in New York City,” said Randy Peers, president and CEO of Brooklyn Chamber of Commerce.

Members of the group Keep McGuinness Moving have collected more than 4,000 signatures from business owners and residents alike who say narrowing McGuinness will do more harm than good.

“Why are we putting the bike lanes on truck routes?” Evelyn Dull, a volunteer with Keep McGuinness Moving, asked. “We’re not opposed to safety. We want safety. As a pedestrian, I want safety.”

Both supporters and opponents of the plan say McGuinness Boulevard is dangerous. Over the last decade, three pedestrians have died in traffic accidents there.

In 2021, community members formed the group Make McGuinness Safe, which held a rally in Greenpoint Thursday evening.

“I would love to see a restored faith from the community that we have a vision for a safer, more hospitable Greenpoint for workers, for residents and visitors,” said state Assembly member Emily Gallagher.

Supporters of the plan say this “Road Diet” is necessary to protect pedestrians and cyclists from speeding drivers and large trucks.

“By making it a one-lane road in either direction, we’ll transform the highway into a local street and then add a really sorely needed void in the bike network and fill that void with protected bike lanes and maintain parking which is a super soar point in the neighborhood,” said Bronwyn Breitner, the lead coordinator with Make McGuinness Safe.

Roadwork is expected to start on McGuinness Boulevard later this year.

The DOT says it will finalize the design based on feedback from the community and elected officials.