Sciweavers

Share
EDBT
2009
ACM

A data model for trip planning in multimodal transportation systems

11 years 8 months ago
A data model for trip planning in multimodal transportation systems
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 requirements for querying are the main contributions of this paper. A set of operators are defined to work over these transportation concepts and they are integrated within a SQL-like syntax to express queries over the uncertain transportation network. Additionally, the paper shows how this model can be integrated within other moving objects and spatio-temporal data models, and how these graph-based queries can be processed.
Joel Booth, A. Prasad Sistla, Ouri Wolfson, Isabel
Added 19 May 2010
Updated 19 May 2010
Type Conference
Year 2009
Where EDBT
Authors Joel Booth, A. Prasad Sistla, Ouri Wolfson, Isabel F. Cruz
Comments (0)
books