We haven't heard much recently about the proposal to close Soldiers Field Road on summer Sundays, but New York City is going to try closing 7 miles of roads from the Brooklyn Bridge to East 72nd Street on three consecutive Saturdays this summer.
City to Experiment With Car-Free Streets - New York Times Blog
“You’ve got to try new things,” Mayor Bloomberg said. “It’s three Saturdays. If it does hurt and it doesn’t provide any benefits, we won’t do it anymore. If it turns out that it’s great, we’ll do it a lot more, I hope. But there’s only one way to find out and that’s to go and to try new things and to minimize the disruption.”