The ambitious redesign will widen sidewalks, reduce traffic lanes and add greenery, aiming to boost safety, foot traffic and economic growth on one of the city’s most iconic streets.

Mayor Eric Adams’ initial investment of over $150 million toward a plan to pedestrianize around a dozen blocks of Fifth Avenue from Bryant Park to Central Park would expand sidewalks by almost half, scale back traffic lanes from five to three and add trees,

Fifth Avenue celebrated its 200th birthday on Sunday, and Mayor Eric Adams marked the occasion with the announcement of an initial infrastructure investment to turn the famed roadway into a pedestrian-centered boulevard.