For historical traffic congestion patterns, this is an awesome tool. I have a court date to contest a speeding ticket. I’ve never driven the route to the court so I can review the traffic pattern for those times and see how much time I should give myself to drive the route. Whoever came up with the service is brilliant!
Traffic Over the last week: These are still images animated of 1 hour time slices.
Click on the Historical Timeslices then choose the day/time of the week that you would like to see.