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Difficulty: MediumRight-of-Way Rules at Intersections

Four vehicles approach a four-way intersection controlled by stop signs in all directions. They arrive and come to a complete stop in sequential order: Vehicle 1 arrives first intending to proceed straight, Vehicle 2 arrives second intending to turn right, Vehicle 3 arrives third intending to turn left, and Vehicle 4 arrives last intending to proceed straight. Arrange the order in which these vehicles must proceed through the intersection legally, from first to last.

  1. 1Vehicle 1 (first to arrive, traveling straight)
  2. 2Vehicle 2 (second to arrive, turning right)
  3. 3Vehicle 3 (third to arrive, turning left)
  4. 4Vehicle 4 (fourth to arrive, traveling straight)

Answer

Vehicle 1 proceeds first, followed by Vehicle 2, then Vehicle 3, and finally Vehicle 4.
At an intersection controlled by four-way stop signs, right-of-way is strictly determined by arrival order. The driver who comes to a complete stop first is the first to proceed. Because all four vehicles arrived at distinct times, they proceed in the exact sequence of their arrival: Vehicle 1, followed by Vehicle 2, then Vehicle 3, and lastly Vehicle 4.

Step-by-Step Solution

1
Identify the controlling rule for a four-way stop intersection when vehicles arrive sequentially.
The fundamental rule at multi-way stop signs is first-in, first-out (FIFO). Right-of-way is granted based on arrival order regardless of turning intentions.
Directional priority rules (such as straight traffic over left-turning traffic) apply only when vehicles arrive simultaneously.
2
Rank the movement order according to the established arrival sequence.
Since arrival order is Vehicle 1 → Vehicle 2 → Vehicle 3 → Vehicle 4, the departure sequence matches this exact order.
Each vehicle must yield to any vehicle that arrived at the intersection before it.

Key Concept

First-come, first-served precedence at multi-way stop intersections
Estimated Time:1m 0s
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Topics

Right-of-Way Rules at Intersections

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