Optimal Slack Time for Schedule-Based Transit Operations

@article{Zhao2006OptimalST,
  title={Optimal Slack Time for Schedule-Based Transit Operations},
  author={Jiamin Zhao and Maged M. Dessouky and Satish T. S. Bukkapatnam},
  journal={Transportation Science},
  year={2006},
  volume={40},
  pages={529-539}
}
In order to improve service reliability, many transit agencies add a significant amount of slack in the schedule. However, too much slack in the schedule reduces service frequency. We study the problem of determining the optimal slack that minimizes the passengers’ expected waiting times under schedule-based control. By associating with a D/G/c queue model, we show that the system is stable if slack is added in the schedule. For a single-bus loop transit network, we derive convexity of mean and… CONTINUE READING
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