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PIARC (World Road Association), founded in 1909 and comprising 125 member governments from all over the world, is the global forum for exchange of knowledge and experience on roads, road transport policies and practices. With consultative status to the Economic and Social Council of the United Nations, the Association is contributing to a stable and sustainable global development of the road and transport sector.

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Term of the Road Dictionary

traffic assignment model

Language : PIARC Road Dictionary / English
Theme : Operations Traffic Traffic Engineering
Definition : Mathematical model which chooses the routes through a road network which vehicles travelling between pairs of zones might be expected to use. Note: a trip matrix may be allocated to these routes to give the traffic flows to be expected on each road.

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