Q. In highway design, what is the typical cross slope for a pavement surface?
Solution
The typical cross slope for a pavement surface is about 2% to facilitate drainage.
Correct Answer:
B
— 2%
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Q. In transportation planning, what does LOS stand for?
-
A.
Level of Service
-
B.
Length of Stay
-
C.
Line of Sight
-
D.
Load of Structure
Solution
In transportation planning, LOS stands for Level of Service, which measures the quality of traffic flow.
Correct Answer:
A
— Level of Service
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Q. What is the maximum grade recommended for a highway?
Solution
The maximum grade recommended for a highway is typically around 5% for safety and comfort.
Correct Answer:
B
— 5%
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Q. What is the minimum stopping sight distance for a design speed of 60 mph on a level road?
-
A.
200 feet
-
B.
300 feet
-
C.
400 feet
-
D.
500 feet
Solution
The minimum stopping sight distance for a design speed of 60 mph is typically around 300 feet.
Correct Answer:
B
— 300 feet
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Q. What is the primary purpose of traffic signs?
-
A.
To provide information
-
B.
To control traffic flow
-
C.
To enhance aesthetics
-
D.
To reduce noise
Solution
The primary purpose of traffic signs is to provide information to drivers for safe navigation.
Correct Answer:
B
— To control traffic flow
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Q. What is the purpose of superelevation in highway design?
-
A.
To increase friction
-
B.
To reduce vehicle speed
-
C.
To counteract centrifugal force
-
D.
To improve aesthetics
Solution
Superelevation is used to counteract centrifugal force on curves, helping vehicles maintain speed safely.
Correct Answer:
C
— To counteract centrifugal force
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Q. What is the recommended lane width for a rural highway?
-
A.
10 feet
-
B.
11 feet
-
C.
12 feet
-
D.
13 feet
Solution
The recommended lane width for a rural highway is generally 11 feet.
Correct Answer:
B
— 11 feet
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Q. What is the typical design speed for a rural arterial road?
-
A.
25 mph
-
B.
40 mph
-
C.
55 mph
-
D.
70 mph
Solution
The typical design speed for a rural arterial road is usually around 55 mph.
Correct Answer:
C
— 55 mph
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Q. What is the typical width of a shoulder on a highway?
-
A.
2 feet
-
B.
4 feet
-
C.
6 feet
-
D.
8 feet
Solution
The typical width of a shoulder on a highway is usually around 6 feet.
Correct Answer:
C
— 6 feet
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Q. Which of the following is NOT a factor in determining the sight distance on a highway?
-
A.
Vehicle speed
-
B.
Road curvature
-
C.
Driver reaction time
-
D.
Pavement material
Solution
Pavement material does not directly affect the sight distance; factors like speed, curvature, and reaction time do.
Correct Answer:
D
— Pavement material
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