NEW YORK — The medians along Park Avenue are about to get a major makeover. 

The city Transportation Department is looking into proposals that would revamp the flower-filled malls that run between Grand Central Terminal and 57th Street.

The city wants to expand the width of the medians, which would leave less room for vehicles.

Two lanes of traffic would be reduced along some blocks, leaving only two running in each direction.  

Pedestrians are currently barred from the medians, but the renovations could add benches, walking or biking paths. 

The project could take at least 20 years before it is completed.