In reply to Chris Sansum:
> I'm planning a trip to the Dolomites in the summer.
>
> Do the roads between there and Treviso get clogged up much?
Sometimes yes, like at rush hour (about 7:00 to 8:30 and 18:00 to 19:30) and Sunday evenings in Summer, or on particular days like August 15 or the end or start of "long weekends".
So be careful for the return flight to leave yourselves plenty of time margin.
They recently improved the motorway link from Marco Polo to Verona (previously it was poor) which continues up to Trento/Bolzano giving easy access to the Brenta Dolomites to the W and Catinaccio and Odle to the E, not to mention the Sarca Valley (Arco), which is where everybody ends up when there are storms in the mountains. However, if you want the eastern Dolls then you had better go up the other way.