My graduation thesis focuses on the safety and traffic analysis of two intersections, located in the municipality of Trieste, namely in the area where the regional road Strada nuova per Opicina intersects with the roads Salita a Conconello and Via della Bellavista.
The first part of the examines the safety of the area. The safety analysis was conducted by using the programs Microsoft Access and ArcMap, to graphically display all the locations where the accidents occurred. The collaboration with the Office for Infrastructure, Logistics and Transport Services of the Region Friuli Venezia Giulia and the municipal police made possible the collection of information regarding the annual accidents from 2010 to 2019. The results based upon the collected data confirmed the presence of critical points, where the numbers of road accidents peaked. In the final part of the research possible solutions to reduce road accidents are presented.
The second part of the thesis consists in the analysis of the traffic load during the peak hours. The current load of traffic was the starting point for the research. Statistical tools and calculations were applied to the current data in order to show the traffic conditions in the next 20 years. The results reveal how the road intersections are characterized by heavy traffic and therefore, are not flow. The latter part of the analysis shows some potential solutions to the problem. In this case, the program SIDRA INTERSECTION 9 was used. Models of the area were created both reproducing the current and the future state of the intersections. The two models were compared with a solution where a traffic light system and a roundabout were installed. The final results indicate how the best solution to diminish the traffic congestion and increase the safety is the creation of a roundabout.
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