quality:corruption
Vehicular traffic

Horse-drawn carriages have been allowed to use the Brooklyn Bridge's roadways since its opening. Originally, each of the two roadways carried two lanes of a different direction of traffic. The lanes were relatively narrow at only 8 feet (2.4 m) wide. In July 1922, motor vehicles were banned from the bridge; the ban lasted until May 1925.

After 1950, the main roadway carried six lanes of automobile traffic, three in each direction. It was then reduced to five lanes with the addition of a two-way bike lane on the Manhattan-bound side in 2021. Because of the roadway's height (11 ft (3.4 m) posted) and weight (6,000 lb (2,700 kg) posted) restrictions, commercial vehicles and buses are prohibited from using the Brooklyn Bridge. The weight restrictions prohibit heavy passenger vehicles such as pickup trucks and SUVs from using the bridge, though this is not often enforced in practice.

On the Brooklyn side, vehicles can enter the bridge from Tillary/Adams Streets to the south, Sands/Pearl Streets to the west, and exit 28B of the eastbound Brooklyn-Queens Expressway. In Manhattan, cars can enter from both the northbound and southbound FDR Drive, as well as Park Row to the west, Chambers /Centre Streets to the north, and Pearl Street to the south. However, the exit from the bridge to northbound Park Row was closed after the September 11 attacks because of increased security concerns: that section of Park Row ran under One Police Plaza, the NYPD headquarters.