Extension of the M3 and M5 underground lines in Milan
Obiettivi dello studio
Together with Masterplan Studio, we carried out a technical and economic pre-feasibility study for the extension of the M3 line to Paderno Dugnano and the M5 line to Magenta. The assignment involved an interdisciplinary team dedicated to the integration of transport planning and urban analysis. Furthermore, this collaboration has enabled the development of a robust methodological framework geared towards the strategic assessment of metropolitan infrastructure. Consequently, the study provides essential technical support for future planning.
Data sources and demand reconstruction
Starting from an integrated data framework, the Lombardy regional Origin/Destination Matrix was constructed in combination with Floating Car Data (FCD) from the VIASAT fleet. This combination therefore made it possible to analyse the demand generated in the area more accurately and to identify the main travel routes. Furthermore, the integration of mobility data and territorial structure has significantly improved the quality of assessments, making the analysis of possible routes more robust. At the same time, cross-checks were carried out to consolidate the internal consistency of the model.
Methodological approach
A parametric methodology was adopted to overcome the absence of a complete network simulation model. The model estimated the impacts in terms of travel times, generalised cost variations and benefits perceived by users. Furthermore, the parametric system has been calibrated to correctly represent disutility in the various design scenarios. Consequently, the approach used allows for a consistent comparative assessment of the alternatives considered.
Evaluation of design alternatives
Various scenarios for extending lines M3 and M5 were analysed, with a quantitative assessment of the expected performance for each route. The analysis therefore made it possible to define design solutions consistent with municipal, regional and national objectives. Subsequently, variables such as transport capacity, accessibility, safety, interchange potential and service levels were compared. Consequently, the selected alternatives represent a coherent set of effective options for the future development of the network.
Expected results and benefits
The results provided a clear picture of the impacts on the public and private transport network. In particular, the extension of the M3 and M5 underground lines shows significant potential in terms of increasing accessibility and reducing car traffic in the northern and western areas of the city. Furthermore, the project contributes to the sustainability of metropolitan mobility and the reduction of emissions. Finally, the study is a useful operational tool to guide subsequent project phases and support funding applications.
Strategic value for Milan
The project supports the metropolitan vision of a more connected, widespread and sustainable network. Thanks to an analytical and data-driven approach, the extension of the underground lines is helping to improve the quality of public transport and strengthen the competitiveness of the Milan area. Furthermore, the quantitative evidence produced provides solid support for economic assessments and funding requests. Consequently, the work is fully in line with the long-term strategy for more efficient and balanced mobility.
