If you drive in this region, you’ve encountered it: the dreaded bottleneck. Traffic should be merrily moving along, but for no dis­cern­ible reason, you find yourself sitting in a parking lot that used to be a functioning roadway.

Well, we want to hear from you. Tell us where the worst bottlenecks are in the Washington area. We’re looking for your stories, your experiences and your suggestions for the most congested arteries. Send an e-mail to bermanm [at] washpost [dot] com or use this page to share your recommendations.

Just put “Bottlenecks” in your subject line and feel free to vent. Let us know any and all details: where the bottlenecks occur, how long they last and how often you’ve encountered them. Please include your name and a phone number so that we can follow up with you.