The Autobahn A3 between Frankfurt and Würzburg, the one we take going back for visits to Lower Franconia, has been rated one of the Top 30 in regards to Stau (traffic jam).
Just this past Friday we experienced a Vollsperrung (complete closure) and had to take the scenic route towards Schweinfurt. It was worth it, though.
The ADAC published the following results for the A3 (Frankfurt – Würzburg) for 2010:
3000 traffic jams, 3500 hours of waiting, with 6600 km in total.