Introductory Human Factors in Civil and Transport Engineering Quiz
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Questions and Answers

What is road risk generally defined as?

  • The total number of fatalities and injuries
  • The average daily traffic on the road
  • The length of the road segment
  • The probability of crash/fatality occurrence (correct)

    • How is exposure most often expressed?

  • Through the annual average daily traffic (AADT) vehicles/day (correct)
  • Through the probability of crash/fatality occurrence
  • Through the segment length in kilometers
  • Through the number of fatalities and injuries

    • What do the coefficients 'a', 'b', and 'c' represent in the road risk formula?

  • Length of the road segment
  • Coefficients to be estimated (correct)
  • Number of fatalities and injuries
  • Average daily traffic

    • Why are the number of fatalities and injuries alone considered insufficient when assessing road safety problems?

    <p>They can be misleading</p> Signup and view all the answers

    What is the predicted average crash frequency (Ni) in the road risk formula?

    <p>The average number of crashes in a road segment</p> Signup and view all the answers

    Which neurotransmitter's release is inhibited by alcohol, leading to impaired cognitive function and reduced inhibitions?

    <p>Glutamate</p> Signup and view all the answers

    What is the primary effect of alcohol on the central nervous system (CNS)?

    <p>Slows down CNS activity</p> Signup and view all the answers

    Which recreational substance is known to impair mood, cognitive function, and cause reduced inhibitions?

    <p>Marijuana</p> Signup and view all the answers

    What is the impact of marijuana on the central nervous system (CNS)?

    <p>Stimulates CNS activity</p> Signup and view all the answers

    Which type of recreational substance is known to be a depressant and can impair motor coordination?

    <p>Alcohol</p> Signup and view all the answers

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