NY市の公園では公園内の道路に車輌進入禁止の時間を設定している。
セントラルパークの場合は6.1マイル（10km）の周回路について以下が車輌フリーの時間。
月曜日から金曜日： 10AM〜3PM、及び 7PM〜7AM（翌朝）
週末（金曜日の7PM〜月曜日の7AM)及び祭日は終日車輌進入禁止。
http://www.centralparknyc.org/visit/things-to-do/sports/bicycle-riding.html
The Park is closed to traffic on Monday through Friday, 10am to 3pm and 7pm to 7am the following morning, and weekends from 7pm Friday to 7am Monday. In addition, the East Drive is closed weekday mornings (open only 3pm to 7pm), and the West Drive is closed weekday afternoons (open only 7am to 10am). When the Park is open to traffic a bikers' lane is always available, though we do not recommend using the Drives when they are open to traffic. The Park is officially closed from 1am to 6am.
