Analysis of the new Termini – Tor Vergata tram line

Study framework

As part of the study on the new Termini – Tor Vergata tram line, we conducted specific analyses on the effects of the infrastructure at the most critical nodes of the Roman network. Furthermore, the study immediately considered the interaction between the line, traffic flows and private road networks. This made it possible to assess the impact on traffic more clearly.

Areas analysed

The areas analysed were Porta Maggiore, Casilina – Togliatti, Torrenova and the Tor Vergata Campus. These are areas with high traffic flows and significant interaction between private and public transport. Consequently, the analysis focused on operating conditions at the points showing the greatest sensitivity.

Methodology and micro-simulation

The activities were developed using dynamic micro-simulation models. The simulations covered the morning and afternoon rush hours of an average weekday. During the work, the movements of individual vehicles were reconstructed and the flow conditions at the main intersections were verified. In addition, the operation of traffic light priority for trams was also simulated in order to more accurately assess the effects on crossings.

Objectives and results

The aim of the micro-simulation was to verify that the reduction in road capacity and the introduction of priority for trams would not create critical issues compared to the current scenario. At the same time, analysis of the project scenarios provided useful information for preventing congestion and improving traffic conditions. Furthermore, the work made it possible to assess the regularity of the new tram service. The results were compiled in technical reports illustrating the methodology, network models and simulated performance. Finally, the current and planned traffic light plans were presented, including those planned for the on-demand phases, in order to ensure a solid and replicable methodological framework for the final design of the line.