The use of micro-simulation for congested traffic load modeling of medium- and long-span bridges

  title={The use of micro-simulation for congested traffic load modeling of medium- and long-span bridges},
  author={Eugene J. O’Brien and A. A. Hayrapetova and Cathal Walsh},
  journal={Structure and Infrastructure Engineering},
This paper presents a new approach to the modelling of congested traffic loading events on long span bridges. Conventional traffic load models are based on Weigh- In-Motion data of non-congested traffic, or something similar to a Poisson Arrival process. In neither case do they account for the mixing between lanes that takes place as traffic becomes congested. It is shown here that cars move out from between trucks as traffic slows down which results in a higher frequency of long platoons of… 

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