Traffic information and its impact on network flow operations

Traffic information comes in different forms. Queue length information and travel time information is provided via road-side systems, real-time information and guidance is provided via in-car technology. Travelers use the internet to acquire information regarding the current conditions in the network before embarking upon their trip. Information is broadcasted via TV, Teletekst or the radio. Besided the way traffic information is broadcasted, also the content of the information can vary: realized travel times can be provided, but also predicted travel times.

The main question is what the impacts of these different information provision strategies are on the traffic flow conditions. What are the implications regarding the information content, timeliness, accuracy and form? And under which conditions is providing information or rerouting useful?

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