A data model for trip planning in multimodal transportation systems

@inproceedings{Booth2009ADM,
  title={A data model for trip planning in multimodal transportation systems},
  author={Joel Booth and A. Prasad Sistla and Ouri Wolfson and Isabel F. Cruz},
  booktitle={EDBT},
  year={2009}
}
This paper introduces the problem of modeling urban transportation systems in a database where certain aspects of the data are probabilistic in nature. The transportation network is composed of multiple modes (e.g., automobile, bus, train, pedestrian) that the user can alternate between. A trip -- a path between an origin and destination subject to some constraints -- is the central concept. How these trips and the network can be represented as both a graph and relational model, as well as the… CONTINUE READING
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