Project Profile: Rhine-Ruhr Express (RRX) Infrastructure Upgrade

The Rhine-Ruhr Express (RRX) is a critical rail infrastructure enhancement project designed to resolve systemic capacity bottlenecks in North Rhine-Westphalia, Germany. By upgrading core routes and deploying high-capacity rolling stock, the project aims to establish a high-frequency, 15-minute headway service between Cologne and Dortmund, fundamentally modernizing one of Europe’s most vital transport corridors.

Technical Specifications

The engineering scope of the RRX project is extensive, centered on the strategic quadruplication of tracks on the high-density Cologne-Duisburg corridor. Key sections, such as Cologne Mülheim to Düsseldorf, are being upgraded from two to four tracks to segregate regional express services from slower local and freight traffic, thereby enabling a consistent high-frequency timetable. Infrastructure work also includes the modernization of the Oberhausen-Düsseldorf tunnel line and significant reconstruction of track layouts and station facilities at major hubs like Dortmund Hauptbahnhof. The project involves upgrading 53 stations to improve accessibility and passenger flow. Operationally, the RRX relies on a fleet of 84 Siemens Desiro HC electric multiple units (EMUs) and additional double-deck trains from a consortium of Alstom and Škoda. The Desiro HC trains feature a hybrid single- and double-deck configuration, providing a capacity of over 800 seats per double unit and equipped with modern amenities including Wi-Fi and real-time passenger information systems. A dedicated maintenance depot in Dortmund-Eving ensures high fleet availability and reliability.

Key Takeaways

• Capacity and Frequency Enhancement: The primary strategic goal is to increase passenger capacity and establish a reliable 15-minute service interval on the core Rhine-Ruhr axis, alleviating chronic overcrowding and providing a competitive alternative to private vehicles.
• Innovative Procurement Model: The project utilizes the “NRW RRX Model,” which separates the contracts for transport operation from the procurement of rolling stock. This approach enhances competition and delegates fleet ownership and maintenance responsibility to specialized entities, aiming for greater long-term efficiency and cost control.
• Regional Economic and Environmental Impact: By improving connectivity between major economic centers like Cologne, Düsseldorf, and Dortmund, the RRX serves as a catalyst for regional growth. The shift to high-capacity electric rail transport is projected to significantly reduce CO2 emissions and traffic congestion in the densely populated region.

Frequently Asked Questions (FAQ)

When will the Rhine-Ruhr Express be fully complete?

The Rhine-Ruhr Express is being implemented in phases. While the new rolling stock has been operational on several lines since 2018-2020, the complex infrastructure upgrades are scheduled for completion in stages through the 2030s. Full 15-minute headway service on the core route is dependent on the completion of these major construction works.

What companies are building the Rhine-Ruhr Express?

The RRX is a collaborative project. Deutsche Bahn, primarily through its subsidiary DB Netz AG, is responsible for the track and station infrastructure. Siemens Mobility supplied the primary fleet of Desiro HC trains and manages their maintenance. A consortium of Alstom and Škoda Transportation is also providing rolling stock. Numerous engineering firms, including ZPP German Engineering and Schüßler Plan, are involved in planning and construction management.