Q. What is the primary benefit of using flexible pavement materials?
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A.
Lower initial cost
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B.
Easier maintenance
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C.
Better load distribution
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D.
Higher durability
Solution
Flexible pavement materials provide better load distribution, allowing them to adapt to traffic loads and environmental conditions.
Correct Answer:
C
— Better load distribution
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Q. What is the primary function of traffic signs in geometric design?
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A.
To enhance road aesthetics
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B.
To provide information and guidance to drivers
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C.
To increase traffic flow
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D.
To reduce construction costs
Solution
Traffic signs are primarily designed to provide information and guidance to drivers, ensuring safe and efficient roadway use.
Correct Answer:
B
— To provide information and guidance to drivers
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Q. What is the purpose of using a vertical curve in highway design?
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A.
To improve drainage
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B.
To enhance aesthetics
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C.
To provide a smooth transition between grades
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D.
To increase lane width
Solution
Vertical curves are used to provide a smooth transition between different grades, improving driver comfort and safety.
Correct Answer:
C
— To provide a smooth transition between grades
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Q. What is the recommended maximum grade for a highway to ensure vehicle performance?
Solution
A maximum grade of 6% is generally recommended for highways to ensure that vehicles can maintain speed without excessive strain.
Correct Answer:
C
— 6%
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Q. Which design element helps to reduce the risk of head-on collisions on highways?
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A.
Median separation
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B.
Lane width
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C.
Shoulder design
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D.
Pavement markings
Solution
Median separation is a critical design element that helps to reduce the risk of head-on collisions by physically separating opposing traffic.
Correct Answer:
A
— Median separation
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Q. Which factor is NOT typically considered in the design of horizontal curves?
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A.
Radius of the curve
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B.
Superelevation rate
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C.
Pavement material
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D.
Design speed
Solution
Pavement material is not a direct factor in the geometric design of horizontal curves, which focuses on radius, superelevation, and design speed.
Correct Answer:
C
— Pavement material
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Q. Which geometric design element is crucial for ensuring visibility at intersections?
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A.
Shoulder width
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B.
Sight distance
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C.
Lane width
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D.
Pavement texture
Solution
Sight distance is critical for visibility at intersections, allowing drivers to see oncoming traffic and react accordingly.
Correct Answer:
B
— Sight distance
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Q. Which of the following is a key consideration in the design of pedestrian facilities at intersections?
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A.
Traffic volume
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B.
Pavement type
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C.
Crosswalk length
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D.
Signal timing
Solution
Traffic volume is a key consideration in designing pedestrian facilities, as it affects the safety and accessibility of crosswalks.
Correct Answer:
A
— Traffic volume
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