flowing

http://www.google.com/images?um=1&hl=en&rlz=1T4ACEW_en___US364&biw=1444&bih=496&tbs=isch%3A1&sa=1&q=flow+maps&aq=f&aqi=g1&aql=&oq=&gs_rfai=


The average weekday traffic flow in Spokane. This map was takken in 2003-2004

statistical

http://images.google.com/images?hl=en&source=imghp&biw=1459&bih=531&q=statistical+map&gbv=2&aq=4&aqi=g10&aql=&oq=statistica&gs_rfai=