In my (normally very busy) neighborhood in nyc, I'd say this week vehicle traffic is down like 70-80% and pedestrian traffic had been down 50-60% earlier in the week and yesterday and today is looking more like 80-90% reduced -- and actually today vehicle traffic seems like it is almost gone. Just delivery and sanitation vehicles.

People seem to be taking it seriously here, but I'm sure there are plenty of places where people are not.