Mayor Bloomberg, Department of Transportation Commissioner Janette Sadik-Khan, and Shawn “Jay-Z” Carter invite New Yorkers from across the five boroughs to take their fun to the streets on three Saturdays this month during Summer Streets. For the next three Saturdays, August 9th, 16th and 23rd, from 7 a.m. to 1 p.m., vehicle traffic will be replaced along seven miles of City streets by New Yorkers and visitors taking leisurely strolls, going for a bike ride or taking part in organized activities such as aikido, salsa dancing, tai-chi, running, rollerblading and hopscotch.