# Budapest public transport modernization

> Developing situation record from CLSTR: https://clstr.news/situations/budapest-public-transport-modernization
> Updated: 2026-10-31T12:47:36.000Z. Sources: 10. Developments: 2.

Budapest is implementing several infrastructure and fleet updates to modernize its transit network. The Budapesti Közlekedési Központ (BKK) has initiated a design contract to expand and modernize the Angyalföld tram depot. This project, funded by European funds, aims to accommodate 51 new CAF trams through the construction of a new maintenance hall and track modernization.

Simultaneously, the Budapest Transport Centre (BKV) is expanding its bus fleet with the acquisition of 20 new Mercedes-Benz Citaro K midibuses. BKV is also testing Bio-CNG technology in collaboration with MOL Group. This trial involves using a bus powered by biomethane produced from organic waste to explore transitional renewable fuel solutions while electric infrastructure is developed.

## Claims

- A Bio-CNG test bus will operate on the 132E route on November 3 and 4. (reported by 2 sources)
- The biomethane for the test is provided by MOL Group from its Szarvas plant. (reported by 2 sources)
- BKV is acquiring 20 new Mercedes-Benz Citaro K midibuses. (reported by 1 source)
- The Citaro K fleet will increase from 65 to 85 vehicles. (reported by 1 source)
- Travel on the Bio-CNG test bus on the 132E route is free for passengers. (reported by 1 source)
- The Mercedes-Benz Citaro K midibuses are 10,633 mm long. (reported by 1 source)
- The Citaro K features a 300 horsepower OM 936 diesel engine. (reported by 1 source)
- The Bio-CNG bus is part of a project to demonstrate the efficiency of alternative fuels in real conditions. (reported by 1 source)

## Timeline

### 2026-10-31: BKK to expand Budapest bus fleet and test Bio-CNG technology

BKV is expanding its Budapest bus fleet with 20 new Mercedes-Benz Citaro K midibuses and testing a Bio-CNG bus on the 132E line.

3 sources. https://clstr.news/cluster/bkk-to-expand-budapest-bus-fleet-and-test-bio-cng-technology

### 2026-10-29: Budapest expands Angyalföld tram depot for new CAF fleet

BKK has signed a design contract to expand the Angyalföld tram depot in Budapest, facilitating the integration of 51 new CAF trams into the city's transit network.

7 sources. https://clstr.news/cluster/budapest-expands-angyalfld-tram-depot-for-new-caf-fleet

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Cite as: Budapest public transport modernization. CLSTR, https://clstr.news/situations/budapest-public-transport-modernization