Urban travel behaviour is very complex. Analysts have tried to capture its main features in models that provide estimates of the levels and patterns of traffic on the urban road network. While the models are correspondingly complex, they are still radical simplifications of real urban systems. Their treatment of some aspects of travel behaviour can only be described as rudimentary. Nevertheless, they represent the state of the art in quantitative urban transport analysis, and they provide a valuable framework for thinking about urban policy issues.

• Traffic Congestion and Road User Charges in Australian Capital Cities
  

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