Traffic on the Verrazano-Narrows Bridge
Here is both real time traffic, and historical traffic information for the bridge.
Current Traffic - Today
The data in the map above is from today and is processed in real time from live MTA feeds and adapted into graphical format so that you can see visually where on the Verrazano Bridge or the approachways, there might be issues.
If there has been an accident or other incident that is blocking traffic flow, then it will be immediately obvious because of the red colored sections of road on the map. When the whole bridge is red then consider another way to cross such as the Holland Tunnel.
Historical traffic trends
As part of the Open Data initive of the NY city the historical data is available for traffic on the bridge. However the data only goes up until 7th July 2017, so there is no data about today.
The data does go back as far as 2010 though so there is a large historical amount of traffic information that may be examined to see typical patterns. Take a look at the peak between Dec 2016 and May 2017 when usage surged, particularly amoung the E-Z Pass users.