Tram Bologna: Project Profile

The Tram Bologna project is a comprehensive urban mobility initiative developing a four-line light rail network in Bologna, Italy. It aims to create a sustainable public transport backbone, significantly reducing traffic congestion and the city’s carbon footprint by integrating key commercial, residential, and transport hubs.

Technical Specifications

Network and Infrastructure

The system is designed as an integrated network of four lines (Red, Green, Yellow, Blue) featuring four interchange stations for seamless transfers. The initial construction phase focuses on two core routes:

• Red Line (Linea Rossa): The network’s foundational line, extending 16.5 km with 31 stops. It provides strategic connections to Bologna Centrale and Borgo Panigale railway stations, the Fiera exhibition center, and the CAAB agricultural hub.
• Green Line (Linea Verde): Adds 7.4 km of track and 18 stops, with sections of track shared with the Red Line to maximize network efficiency and connectivity.

The subsequent Yellow and Blue lines are planned to expand the network’s reach into the wider metropolitan area.

Rolling Stock

The project will deploy a fleet of 60 modern trams, each with a minimum capacity of 205 passengers. Key vehicle specifications include:

• Dimensions: 33-35 meters in length and 2.4 meters in width.
• Propulsion: A hybrid electrical system utilising a primary overhead electric catenary and supplemented by onboard batteries. This dual-system allows for “catenary-free” operation in historically sensitive areas, preserving the urban aesthetic.
• Features: The trams are equipped with dual driver’s cabins, multiple side doors for efficient passenger flow, full accessibility for all users, and advanced noise-reduction technology to minimize urban disruption.

Key Takeaways

• Sustainable Urban Development: The project is a cornerstone of Bologna’s environmental strategy, projected to reduce greenhouse gas emissions by 40% and decrease reliance on private cars.
• Integrated Network Design: By connecting major railway stations, business districts, and residential areas, the four-line system is engineered to provide comprehensive, city-wide coverage and create a viable alternative to road transport.
• Advanced & Adaptive Technology: The use of modern rolling stock with an onboard battery system demonstrates a forward-thinking approach, balancing the need for efficient electric traction with the preservation of Bologna’s historic city center.

Frequently Asked Questions (FAQ)

What is the primary funding source for the Tram Bologna project?

The €500 million project is significantly funded by Italy’s National Recovery and Resilience Plan (PNRR). The PNRR has allocated over €215 million specifically for the Red and Green lines, underscoring the project’s importance to national sustainable infrastructure goals.

How will the tram operate without overhead lines in the historic center?

The Alstom trams are equipped with a hybrid power system. While they primarily draw power from overhead electric lines, they also feature an onboard battery system. This allows them to lower their pantographs and operate on stored energy when traveling through architecturally sensitive or historic zones where overhead catenary is not installed.