Mythbusters: Season 15, Episode 6 - ProjectFreeTV

15 - 6: Mythssion Impossible

The MythBusters tackle congestion questions: testing shockwave jams, if a roundabout is better than a 4-way stop sign, if it's faster to drive than fly when your trip is under 400 miles, and if it's better to change lanes or stay put in heavy traffic.