IA Right of Way
You arrive at a four way stop in Iowa at the same time as another vehicle on your right. Who has the right of way?
- You do, because vehicles on the left always go first
- The vehicle on the right has the right of way and goes first ✓
- Whoever signals first has the right of way
- Both vehicles must wait for a third car to clear the intersection
The answer explained
At a four way stop the order is simple. Whoever arrives first goes first. If two vehicles arrive at the same time, the one on the right proceeds first. If three or four vehicles arrive at the same time, drivers should yield to the right and proceed in order, often with brief eye contact and a hand wave to confirm. Iowa expects you to come to a full stop before entering the intersection, then yield based on this rule.
Why this rule exists
The right hand rule resolves ties without requiring a separate traffic control device. It also matches the natural sight line of most drivers, who can more easily see vehicles to their right than vehicles approaching from across the intersection.
The most common mistake
Many drivers wave another vehicle through to be polite, which can confuse oncoming traffic and cause a crash. Following the rule predictably is safer than improvising courtesy.
Iowa specific note
Iowa is one of the few states where the knowledge test can be taken at participating high schools. For this question in particular, the Iowa Department of Transportation aligns with the standard interpretation explained above. Always verify against the most recent Iowa driver handbook before relying on these details for the live exam.
Study tip
If the question describes a tie at a four way stop, the answer is yield to the vehicle on the right. If only one direction has a stop sign, traffic without a stop sign always has right of way.
Related questions for Iowa
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- What is the typical maximum posted speed limit on a rural interstate highway in Iowa?
- In Iowa how close are you allowed to park to a fire hydrant?
- What is the per se blood alcohol concentration limit for an adult driver of a passenger vehicle in Iowa?