By Cory Bilton
If you cycle in the Northern Virginia area, particularly inside the beltway, you are probably familiar with the threat of being “doored.” In many parts of Arlington, Alexandria, and Fairfax, you are frequently riding between moving traffic to the left and cars parked along the right side of the road. When a car door suddenly opens right in front of you, it’s not the good kind of adrenaline rush. Often, there is no time to brake or swerve to miss the open door. But even assuming you have the opportunity, your choices include trying to skid to a quick stop or swerve out into traffic; neither option will necessarily save you from a trip to the emergency room.