GoogleMaps_Detroit_Traffic_HistoryPretty aged tool of Google Maps but still very useful. Traffic status prediction based on historical data. Use and save your life time! ;)
 
«Google Maps has a feature called «typical traffic,» which lets you pick a day and time to see what the traffic has looked like historically — so if you’re trying to get out of the city at 4pm on a Friday, you can avoid the most historically jammed-up highways. This feature has been available for highway routes for years, but Google is finally rolling it out to surface roads as well. It’s built right into the desktop version of Google Maps: just enter a starting point and a destination, enable traffic, and then select the day and time to see what the traffic is typically like on your selected timeframe.» (theverge.com)