Construction is resuming on Flatbush Avenue. The city Department of Transportation announced crews will return to Brooklyn’s most congested bus corridor during the last week of April, pushing through to fall.

The stretch under redesign runs from Livingston Street to Grand Army Plaza. What’s going in: center-running bus lanes, six concrete boarding islands, nearly 29,000 feet of new pedestrian space, eleven loading zones, and 14 bike parking areas. DOT broke ground last fall between Livingston and State streets before winter shut the project down.

Don’t let the pause fool you. This is a big one.

The numbers explain why the city’s finally moving. Bus speeds on Flatbush Avenue drop to four miles per hour during peak hours. Four miles per hour. That’s not a commute, that’s a crawl you can beat on foot. A 2024 survey by the advocacy group Riders Alliance found that 91 percent of riders on the corridor reported delays in 2023. The B41, Brooklyn’s workhorse route, will be the primary beneficiary of the redesign, along with the B67, B69, B63, B45, and B103. Together those six routes carry 132,000 daily riders.

DOT Commissioner Mike Flynn didn’t soften the indictment. It can “Often be as fast to walk as it is to take a bus on Flatbush Avenue, and with over 100,000 riders relying on the bus to get around, that must change,” he said. “The new Flatbush Avenue offers a bold blueprint to speed up buses and deliver safer streets.”

Enforcement won’t rely on goodwill. Bus-mounted cameras operated by the MTA and stationary cameras run by DOT will police the dedicated lanes. That’s the piece that determines whether this works. Paint fades. Concrete boarding islands help keep private vehicles out, but camera enforcement is what keeps the lane clear when a driver decides the rules don’t apply to them.

Mayor Zohran Mamdani put the project in terms most riders will understand immediately. “These center-running bus lanes will give New Yorkers back something precious: time with their families, time at work, time in their communities,” he said. “Long waits and unreliable service are not inevitable, they are the result of political choices. Today, we are choosing a system that puts bus riders first and builds safer streets for everyone.”

That framing matters. For anyone who’s watched three B41s that never showed up disappear from the app, only to have two arrive simultaneously, the argument that this is a policy failure rather than a physics problem lands differently. It’s a political commitment with a price tag attached.

The project has a long runway behind it. The former Adams administration floated the concept back in 2022, meaning it’s taken roughly four years from idea to active construction. By New York infrastructure standards that’s not unusual. By the standard of daily riders who’ve waited on that corridor in every kind of weather, it’s overdue. The Brooklyn Paper has tracked the project’s fits and starts throughout.

Construction will now run from the last week of April through fall 2026, with the full corridor between Livingston Street and Grand Army Plaza expected to take shape over that span. What DOT built last fall between Livingston and State streets established the template. The rest of the avenue follows that model north.

The political context here isn’t incidental. Real estate and car-centric interests have reliably complicated bus lane projects in Brooklyn before they broke ground. The fact that this one survived the Adams years, got handed off, and is now back under active construction with camera enforcement attached suggests it’s past the point where it can be quietly shelved.

Whether the enforcement regime actually works is the open question. Camera-enforced bus lanes on 14th Street in Manhattan showed measurable speed improvements. Flatbush is wider, busier, and handles a different mix of commercial traffic. The 132,000 daily riders on these routes will find out soon enough.

Crews go back to work the last week of April.