The Department of Transportation announced that Central Park's West Drive will be car free until 8AM starting on Monday, August 6. Per the DOT's press release, via Streetsblog:

Beginning Monday, August 6th, the West Drive of Central Park between Lenox Avenue and the 7th Avenue Exit will be closed to motor vehicles for an additional hour (7-8am) during the morning peak period. Currently, the West Drive is open to motor vehicles between the hours of 7-10am and operates as an HOV 2+ only roadway. With this change, the West Drive will be open to motor vehicles between the hours of 8-10am only and will continue to operate as an HOV 2+ roadway. This additional hour of closure of the West Drive to motor vehicles provides an additional hour of conflict-free recreational use during the early morning hours.

DOT Commissioner Janette Sadik-Khan cites how Central Park is "busy in the mornings with walkers, joggers and cyclists," but there's no mention of the walkers, joggers and cyclists in Brooklyn's Prospect Park, as there were no improvements mentioned for it. Central Park's East Drive is open during the afternoons and early evenings (3-7PM) while East Drive from Sixth Avenue to 72nd and Fifth is open between 7AM and 7PM.

Here's information about Transportation Alternatives' Car-Free Central Park campaign.

Photograph of Central Park bicyclist and jogger by Harris Graber on Flickr