This shows 24 hours of traffic in a second! Yellow is slow, Red is blockage, Green is flowing, and I’m not sure what black is! For NYC, it looks like a heart attack is imminent.Currently, only a limited number of cities are supported, but if you’d like your city included, write to us.This may be a reason to run or ride your bike!For current New York City information, see http://parking.brooklynmarathon.com/static/trafficwatcher.html