Editor's Note: Washington Post moderators retain editorial control over discussions and choose the most relevant questions for guests and hosts; guests and hosts can decline to answer questions. The Washington Post is not responsible for any content posted by third parties. Discussion guidelines
    Apr 18, 2011 | 12:00 PM EDT

    The Washington Post's Dr. Gridlock, Robert Thomson, will be online to take all your questions about Metro, traffic throughout the region and other transportation issues.

    Chat starts on Apr 18, 2011 at 12:00 PM EDT
    Send in your questions now!


      Editor's Note: Washington Post moderators retain editorial control over discussions and choose the most relevant questions for guests and hosts; guests and hosts can decline to answer questions. The Washington Post is not responsible for any content posted by third parties. Discussion guidelines
      In This Chat
      Robert Thomson
      Robert Thomson is The Washington Post's Dr. Gridlock. He offers therapy for that most intimate relationship: the one between you and your commute. You can read his work on his namesake blog, as well as in the Metro section of The Washington Post.
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