Budapest Invests €140M for 51 New CAF Trams

Budapest’s BKK invested €140 million for 51 new CAF trams, expanding the city’s tram network to serve new urban developments and population growth areas.

Budapest Invests €140M for 51 New CAF Trams
April 28, 2026 8:47 am | Last Update: April 28, 2026 8:48 am
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⚡ In Brief: Budapest’s public transport authority, BKK, is advancing a multi-faceted tramway expansion to serve new urban developments, supported by a €140 million procurement of 51 new CAF vehicles to accommodate projected population growth.

BUDAPEST, HUNGARY – The city of Budapest is accelerating a series of strategic investments in its urban rail network, focusing on tram line extensions and fleet modernization. The program, operated by public transport authority BKK, includes the construction of new lines in southern and northern districts and the introduction of 51 new CAF trams funded with €140 million from European and national sources.

What Is the Full Scope of This Project?

The investment program encompasses multiple distinct but integrated projects aimed at increasing rail capacity and connectivity. Key components include a new transport corridor along Budafoki út to serve an area expecting 40,000 new residents by 2030, and a new 3.5-km line in the Óbuda district projected to carry up to 40,000 passengers daily. The program is underpinned by the modernization of the tram fleet with 51 new low-floor CAF vehicles and a concurrent upgrade of depot facilities, starting with the design contract for the Ferencváros depot valued at approximately €1 million.

Key Project Data

ParameterValue
Project / Contract NameBudapest Tram Network Expansion & Modernisation
Total ValueNot disclosed (Note: €140M figure is for rolling stock only)
Parties InvolvedBKK (Budapest Public Transport Authority), CAF (rolling stock)
Timeline / CompletionPhased; Depot design documentation to be finalised in 2027
Country / CorridorHungary / Budapest (Budafoki út, Óbuda)

How Does This Compare to Similar Projects?

While the total investment value for Budapest’s civil works has not been disclosed, the scale of investment in urban rail varies significantly depending on the mode. For comparison, the Chicago Transit Authority’s (CTA) Red Line extension project, a heavy metro initiative, involves constructing 8.85 km (5.5 miles) of new line at a total cost of $5.75 billion, with a completion target of 2031 (Source: Chicago Tribune, 2026). The Budapest program, focused on more financially accessible light rail extensions, addresses urban growth with a different capital investment profile. The €140 million allocated for 51 new trams represents a fraction of the cost of a single heavy rail extension project in the United States.

Editor’s Analysis

Budapest’s strategy prioritizes targeted light rail interventions over large-scale, high-cost metro projects. By aligning new tram lines directly with planned residential and commercial development, the city aims to capture ridership demand proactively and steer urban growth along sustainable transport corridors. This approach reflects a broader European trend where rail infrastructure investment is a catalyst for wider economic activity, as seen in Greater Paris where the hotel market attracted €1.9 billion in investment in 2025, partly driven by new transport links (Source: HospitalityNet, 2025).

FAQ

Q: What is the main goal of the Budapest tram expansion?
A: The primary goal is to provide sustainable public transport for growing residential areas, particularly in southern and northern Budapest. The projects are designed to support a projected population increase of nearly 40,000 people in the Budafoki út area and reduce dependence on private cars.

Q: How much is the total investment for the new tram lines?
A: The total construction cost for the new lines on Budafoki út and in Óbuda has not been officially disclosed. The announced funding of €140 million is specifically for the procurement of 51 new CAF trams to operate on the network.

Q: How will the new trams impact passenger service?
A: The introduction of 51 new CAF vehicles will raise the proportion of low-floor, accessible trams in Budapest’s fleet to over 40%. This will improve comfort and accessibility, though their widespread deployment is dependent on the modernization of power supply and terminal infrastructure on existing lines.