Q. What is the function of a clear zone in highway design?
A.
To provide space for emergency vehicles
B.
To enhance aesthetic landscaping
C.
To reduce the risk of roadside hazards
D.
To increase traffic flow
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Solution
The clear zone is an area free of obstacles that provides a recovery area for errant vehicles, thereby reducing the risk of roadside hazards.
Correct Answer:
C
— To reduce the risk of roadside hazards
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Q. What is the primary factor influencing the design speed of a highway?
A.
Traffic volume
B.
Road surface material
C.
Topography
D.
Land use
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Solution
Topography significantly influences design speed as it affects the alignment and grade of the highway.
Correct Answer:
C
— Topography
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Q. What is the purpose of a roundabout in highway design?
A.
To increase traffic speed
B.
To reduce vehicle emissions
C.
To improve traffic flow and safety
D.
To provide pedestrian crossings
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Solution
Roundabouts are designed to improve traffic flow and safety by reducing the number of conflict points and allowing continuous movement.
Correct Answer:
C
— To improve traffic flow and safety
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Q. Which factor is NOT typically considered in geometric design of highways?
A.
Traffic volume
B.
Vehicle speed
C.
Weather conditions
D.
Aesthetic preferences
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Solution
While aesthetic preferences may influence some design choices, they are not a primary factor in the geometric design of highways, which focuses on safety and efficiency.
Correct Answer:
D
— Aesthetic preferences
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Q. Which geometric design element is crucial for ensuring safe sight distance on highways?
A.
Lane width
B.
Shoulder width
C.
Vertical alignment
D.
Horizontal alignment
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Solution
Vertical alignment affects the sight distance by determining how much of the road ahead is visible to drivers, especially on hills.
Correct Answer:
C
— Vertical alignment
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Q. Which traffic sign is used to indicate a sharp curve ahead?
A.
Stop sign
B.
Yield sign
C.
Curve warning sign
D.
Speed limit sign
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Solution
A curve warning sign alerts drivers to an upcoming sharp curve, helping to prevent accidents.
Correct Answer:
C
— Curve warning sign
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Q. Which type of pavement is most commonly used for high-traffic highways?
A.
Asphalt concrete
B.
Portland cement concrete
C.
Gravel
D.
Brick
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Solution
Asphalt concrete is preferred for high-traffic highways due to its flexibility, durability, and ease of maintenance.
Correct Answer:
B
— Portland cement concrete
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