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Civil Engineering PE

Category - Transportation

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According to AASHTO guidance, traffic control device should meet five principles in order to be effective, including which of the following?

Allow enough time for response
Aesthetically appealing
A. and B.
None of the above

Explanation

Answer: A - A traffic control device should meet five principles in order to be effective, including allowing enough time for response. The remaining four principles are as follow:
• Fulfill a need
• Command respect
• Command attention
• Communicate a clear, simple message

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Civil Engineering PE

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