When passing vehicles parked on the left, you should stay at a distance of about?

• A. Four feet away
• B. Ten feet away
• C. One foot away
• D. Twenty feet away

Answer: (A)

Keep a safe, wide margin when you pass cars parked on your left. The main idea is to avoid being in the door zone, where a suddenly opened door could strike you or force an emergency maneuver. Leaving about four feet of clearance gives you room to react if a door swings open or someone steps out from a parked car, and it helps you stay in your lane rather than drifting toward traffic. Distances like one foot are dangerously close to an opening door, ten feet is more than necessary for this purpose and can hinder your lane position in traffic, and twenty feet is excessive for typical city streets. So, maintaining roughly four feet of space is the safest, practical guideline.