ČD Cuts 55-Year Hydra DMU Service Prague Kladno

PRAGUE – České dráhy (ČD) has ended the regular deployment of its 854 series diesel multiple units (DMUs) on the Prague–Kladno–Rakovník line after more than 55 years of service. The final scheduled train operated by the legacy railcar ran on May 7. The fleet is being replaced by more accessible 814.2 Regionova DMUs as an interim solution.

What Are the Technical Specifications?

The retirement affects the 854 series DMUs, nicknamed “Hydra,” which were modernized from 852 and 853 series railcars originally built between 1969 and 1972. The immediate replacements on the specified route are 814.2 Regionova DMUs operating in a three-car “trio” configuration, which offer partial low-floor access for passengers with reduced mobility. This fleet change is a precursor to the national introduction of 106 new RegioFox DMUs and the eventual electrification of the line, which will allow for the deployment of new electric multiple units.

Key Technical Data

Where Does This Technology Stand in the Market?

The replacement of high-floor, diesel-powered rolling stock from the 1960s with modern, accessible units aligns with a broader European trend driven by passenger expectations and regulatory pressure. This move by ČD reflects a continent-wide push to make rail travel more accommodating and competitive. For example, new EU regulations set to take effect from 2027 will enhance passenger rights, including guaranteed passage on the next available service after a missed connection, a standard that new and reliable rolling stock is better equipped to support (Source: Reuters, 2026). While the interim 814.2 Regionova units offer only partial accessibility, the planned introduction of fully accessible RegioFox DMUs and new electric trains positions ČD to comply with long-term EU accessibility and service quality standards.

Editor’s Analysis

This fleet upgrade by České dráhy is a microcosm of the Czech Republic’s dual-track railway strategy: modernizing regional services while planning major capital expenditure on high-speed infrastructure. The retirement of the “Hydra” units addresses immediate passenger needs for accessibility and is a necessary step to improve the attractiveness of regional rail. This operational enhancement complements the country’s larger ambitions, which include significant investment in high-speed rail corridors supported by infrastructure funds (Source: PitchBook, 2025), creating a more integrated and modern national network.

FAQ

Q: Why is the 854 “Hydra” DMU being retired?
A: The primary reason for the retirement is the fleet’s age, at over 55 years, and its high-floor design, which lacks step-free access for passengers with reduced mobility, seniors, and families with strollers.

Q: What specific trains are replacing the Hydra DMUs?
A: On the Prague–Kladno–Rakovník route, the immediate replacement is the 814.2 Regionova DMU. Nationally, this change is part of a larger fleet renewal by České dráhy that includes the introduction of 106 new RegioFox DMUs.

Q: Are all 854 series DMUs being scrapped?
A: No, their regular scheduled service is ending, but some units will be retained by ČD as an operational reserve. They may be used temporarily on lines with high demand or during special events, with current reserve operations taking place in southern Moravia.