Evaluation of operating speed for two-lane rural roads: an Italian case study

There are already many studies that have as their objective the evaluation of the environmental speed on tangent elements. in this paper we present a first solution to the problem of evaluation of environmental speed through the rural roads of the Province of Pisa. In the following, an overview is presented on the state of the art and on the existing models; in the second part is than presented the methodology followed for selection, data collection, calibration and validation of the model for the evaluation of an environmental speed on tangent elements, relating only to two-lane rural roads.