Which of the following sight distances is the longest of all?
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A.
Overtaking sight distance
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B.
Illumination sight distance
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C.
Stopping sight distance
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D.
Intersection sight distance
Correct Answer:
A. Overtaking sight distance
Explanation:
Overtaking sight distance is the longest of all sight distances because it requires enough space for a vehicle to safely pass a slower-moving vehicle while accounting for oncoming traffic. In contrast, stopping sight distance only requires enough room for a vehicle to come to a complete halt, and illumination or intersection sight distances are typically shorter as they are designed for specific visibility or turning conditions. Therefore, overtaking sight distance requires the most extensive clear stretch of road for safe execution.
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