Motorway Speed Management in Southern Italy

Comparing operating speed (V85) with the theoretical design speeds makes many of the assessments fundamental to correct design more effective. In technical literature various models for estimatingV85 are present but they cannot be extended to motorways without risking substantial approximation. This study proposes a model for estimating V85 on motorways. In addition, it proposes a second model making it possible to estimate free flow speed (FFS) in various traffic conditions. This could be very useful for Level of Service studies on motorways.