Practice Quiz

Civil Engineering PE

Category - Transportation

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Which of the following is not a distance that is included in the American Association of State Highway Transportation Officials (AASHTO) standard calculation for minimum passing sight distance for two lane highways?
  1. Distance traveled behind a vehicle to be passed
  2. Distance traveled during perception and reaction time during time to accelerate to point of encroachment on left lane
  3. Distance traveled while passing in left lane
  4. Distance between passing vehicle at the end of pass and an opposing vehicle
Explanation
Answer: A - The distance traveled behind a vehicle to be passed is not a distance that is included in the AASHTO standard calculation for minimum passing sight distance for two lane highways. The fourth distance included in the calculation is the distance traveled by an opposing vehicle for 2/3 of the time a passing vehicle is in the left lane (the one in which the opposing vehicle is traveling).
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