Alstom and RESA A.Ş. pioneers Türkiye's first Rigid Overhead Catenary System for high-speed rail

Alstom's Rigid Overhead Catenary System (ROCS) will be installed on the Halkalı-Ispartakule section of the Halkalı-Kapıkule high-speed train line, creating a vital link between Türkiye and Europe. This line will stretch a total of 229 kilometers. Alstom’s catenary system will be placed in a double-track tunnel, each around 7 kilometers long and 8.3 meters wide, running beneath local neighborhoods and Küçükçekmece Lake. The catenary system is being manufactured at Alstom's facility in Valmadrera (Lecco), Italy. Once the Halkalı-Kapıkule High-Speed Train Line is completed, it will be a key part of the Trans-European Transport Network (TEN-T). This line is expected to boost passenger transport by 80% and increase freight transport by 45%, greatly improving transportation in Istanbul and supporting the region's economic growth.

Kerem Bugay, Managing Director of Alstom Türkiye says, ‘At Alstom, we have been dedicated to developing Türkiye's railway sector for over 70 years. This new contract with RESA A.Ş. marks another important milestone, combining our global expertise and strong local team. We connect local partners to opportunities arising from Alstom's projects around the world. Moving forward, we will continue to invest and collaborate to support Türkiye's vision for rail transportation.'

Serkan Atalar, Managing Director of RESA A.Ş. says, ‘As RESA A.Ş., we have been serving the railway sector in our country for long years. With the construction of the Rigid Catenary System for the Halkalı – Ispartakule High-Speed Train Project, which we have undertaken as a turnkey project, we are adding another milestone to our services. This project holds great significance as it will be the first high-speed train project in Türkiye to implement a rigid catenary system, and we are especially proud to be the first company in our country to carry this out. We are pleased to elevate our strong collaboration with Alstom to a new level through the Halkalı – Ispartakule High-Speed Train Project, following the ongoing Ümraniye – Ataşehir – Göztepe and Gebze – Darıca Metro Projects. ‘

Alstom's ROCS is an efficient and cost-effective solution for rigid overhead catenary, particularly suitable for confined spaces and tunnel retrofits. It features an aluminum conductor profile paired with a copper contact wire, ensuring both ease of installation and low maintenance. The compact design not only offers high performance but also enhances fire resistance. ROCS integrates easily with existing lines and accommodates different supply voltages, making it a versatile choice for a wide range of applications.

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