Civil Engineering - Transportation
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Review Course Section Quiz 10
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1. Calculate the Middle Ordinate (m) for a horizontal curve with radius (R) = 115 ft and a central angle (I) = 72 degrees
a. 18.54 ft
b. 19.71 ft
c. 20.08 ft
d. 21.96 ft
2. Calculate the External Distance (E) for a horizontal curve with radius (R) = 115 ft and a central angle (I) = 72 degrees
a. 27.15 ft
b. 27.49 ft
c. 28.37 ft
d. 28.64 ft
3. Calculate the Chord Length (L) for a horizontal curve with radius (R) = 115 ft and a central angle (I) = 72 degrees
a. 112.7ft
b. 115.9ft
c. 127.5ft
d. 135.2ft
4. Calculate the Stopping Sight Distance (SSD) for a vehicle travelling 95 mph on a flat highway. Deceleration rate is 10 ft/s
^{2}
and perception-reaction time is 2.52 sec.
a. 0.25 miles
b. 0.30 miles
c. 0.33 miles
d. 0.41 miles
5. Calculate the Decision Sight Distance (DSD) for a vehicle travelling 95 mph on a flat rural highway and merging from 3 lanes into 2 lanes. Pre-maneuver time (t) = 11 sec.
a. 1345 ft
b. 1421 ft
c. 1468 ft
d. 1536 ft
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