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<p>In this paper a didactic model for the control of the speed of the vehicles in a road is presented. Based on empirical assumptions, the model provides an answer to the problem of finding the best road from the point of view of the time that is needed for going from the top of a hill to a certain point in the valley under the assumption that certain restrictions for the speed are imposed. Thus, we construct a simple model for representing the time dependence of the traffic in a road as an exercise of mathematical modelling adequate for a basic level of a civil engineering career.</p

Una aplicación didáctica de la modelización matemática: control de velocidad de vehículos en vías rurales