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Difficulty: MediumRight-of-Way Rules at Intersections

Three vehicles arrive at an uncontrolled four-way intersection at the exact same time. Vehicle 1 is approaching from the West, Vehicle 2 is approaching from the South, and Vehicle 3 is approaching from the East. All three drivers intend to proceed straight. In what order must these vehicles proceed through the intersection according to right-of-way rules?

  1. 1Vehicle 3 (approaching from the East)
  2. 2Vehicle 2 (approaching from the South)
  3. 3Vehicle 1 (approaching from the West)

Answer

Vehicle 3 proceeds first, followed by Vehicle 2, and Vehicle 1 proceeds last.
At an uncontrolled intersection, drivers must yield to any vehicle approaching from their immediate right. Looking at the three vehicles: Vehicle 1 (West) has Vehicle 2 (South) to its right; Vehicle 2 (South) has Vehicle 3 (East) to its right; Vehicle 3 (East) has no vehicle to its right because the North approach is clear. Therefore, Vehicle 3 proceeds first. Once Vehicle 3 clears, Vehicle 2 no longer has a vehicle on its right and proceeds second. Finally, Vehicle 1 proceeds last after Vehicle 2 clears.

Step-by-Step Solution

1
Identify the right-of-way rule for uncontrolled intersections.
When multiple vehicles arrive simultaneously at an uncontrolled intersection, each driver must yield to the vehicle on their immediate right.
Standard traffic law establishes priority based on yielding to the right when no traffic control devices are present.
2
Analyze the right-to-left positional relationships of all three vehicles.
Vehicle 1 (West) has Vehicle 2 (South) to its right. Vehicle 2 (South) has Vehicle 3 (East) to its right. Vehicle 3 (East) has an empty North approach to its right.
Checking the immediate right approach for each vehicle determines who has an unobstructed right-of-way.
3
Establish the sequence of movement based on who must yield.
Vehicle 3 moves first because North is clear. Next, Vehicle 2 moves because East is now clear. Finally, Vehicle 1 moves because South is now clear.
As each vehicle clears the intersection, the vehicle to its left is freed of its requirement to yield.

Key Concept

Yielding to the vehicle on the right at uncontrolled intersections
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Topics

Right-of-Way Rules at Intersections

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