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The original was posted on /r/explainlikeimfive by /u/bluewhalebluejay on 2023-06-25 03:30:23+00:00.


5+ mile backup minimum of stop and go traffic leading up to the west bound Chesapeake Bay Bridge.

There is:

  • 10+ miles of 3 lane highway (55mph) before the bridge
  • 3 lanes on the bridge
  • and 3 lanes for 20+ miles after crossing the bridge.
  • no toll booths
  • no signals or speed reductions

after sitting in bumper to bumper traffic for 30min - hour, you finally get to the base of the bridge and then the traffic just magically dissipates and everyone accelerates to the normal 55mph speed.

HOW & WHY DOES THIS HAPPEN?