Can anyone suggest a state of the art of traffic model in a network? How are discrete entities with origin-destination routes modeled in a network?

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Kardi Teknomo

My recent publication (http://onlinelibrary.wiley.com/doi/10.1002/atr.1214/abstract) is dealing with origin destination and route (in term of trajectories). If you are interested, You can request for personal copy of the paper.

Axel Berres

Former collauges work on Sumo http://sumo-sim.org/. On thios website you shall also find additional publications.