Multiple choice

The probability that k number of vehicles arrive (i.e. cross a predefined line) in time t is given as$(\lambda t)^k e^{- \lambda t} / K!$, where $\lambda$ is the average vehicle arrival rate. What is the probability that the time headway is greater than or equal to time t1?

  1. $\lambda e^{\lambda t_I}$
  2. $\lambda e^{-t_I}$
  3. $e^{\lambda t_I}$
  4. $e^{-\lambda t_I}$
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D Correct answer
Explanation

 

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