In the semi-underground portions there is an exchange of air through the gaps of thernstructure over them caused by the traffic and natural wind. This breathing phenomenonrnhas been studied and estimated so far, but they don’t refer to the influence of the structurernover expressways on the breathing.rnWe adapt the 3D numerical simulations with the traffic included in it to a certain semiundergroundrnroad with a complex overhead structure such as beams and roofs in order tornestimate their influence on the breathing. In this paper we present some of the results andrnthen discuss them.
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