The Evolution of Track Inspection: Goldschmidt’s role in securing rail reliability

As networks expand, train speeds increase, and the demand for reliable and safe transportation intensifies, the ability to accurately assess and proactively maintain track infrastructure has become paramount. Leading this charge in innovation and comprehensive solutions is Goldschmidt, a company with a rich history rooted in rail technology, which has significantly expanded its focus to address this crucial need. 

The unseen challenges for rail infrastructure operators 

Today’s rail infrastructure operators face a multifaceted array of challenges, but at the core of their concerns lies the imperative for reliable track maintenance. This isn’t merely about keeping trains running; it’s about ensuring safety, optimising operational efficiency, and managing escalating costs. Goldschmidt’s deep engagement in what they term “Inspection Solutions” stems from a keen understanding of these pressures. 

A primary and increasingly urgent challenge identified by Goldschmidt through its global interactions with customers is the widespread issue of a limited, and in some regions, even decreasing, skilled workforce available for track maintenance. This demographic shift, coupled with the sheer scale and complexity of modern rail networks, means that traditional, manual inspection methods are no longer sufficient.  

To secure the reliability and safety of their vast infrastructure, operators are compelled to seek out innovative, technology-driven alternatives. The fundamental requirement, in this new paradigm, is precise, real-time information about the actual condition of the infrastructure. This is where Goldschmidt steps in, providing the critical data necessary to define and prioritise maintenance activities with unprecedented accuracy. Without this foundational understanding, maintenance efforts can be reactive, inefficient, and ultimately, more costly and less safe. 

Goldschmidt’s comprehensive portfolio of inspection solutions 

Goldschmidt has positioned itself at the forefront of this technological evolution by offering what is arguably the most comprehensive product portfolio dedicated to track inspection. Their solutions span a wide spectrum of diagnostic needs, leveraging cutting-edge sensor technologies combined with sophisticated data analysis software. 

At the heart of their offerings are laser-based geometry measurement systems. These highly precise tools are capable of meticulously assessing the geometric parameters of rails, the overall track structure, intricate switches, and even individual train wheels. By identifying minute deviations from ideal geometry, these systems enable operators to detect potential issues before they escalate into significant problems, ensuring smooth train operation and preventing wear and tear. 

Complementing these precise measurements are Goldschmidt’s visual inspection systems. These solutions provide a crucial “eye on the track,” examining critical surface elements such as ballast integrity, the condition of clips securing the rails, the overhead catenary system, track clearance, and even the state of trackside signs. These visual assessments are vital for identifying surface defects, foreign objects, or environmental impacts that could compromise safety or operational efficiency. 

These insidious defects can propagate rapidly under continuous train traffic, leading to catastrophic rail breaks if left undetected.

Furthermore, Goldschmidt offers highly specialized systems based on ultrasonic and eddy current sensor technology. These advanced tools delve beneath the surface, designed to detect hidden flaws within the rails or at the rail surface, such as squats or head checks. These insidious defects can propagate rapidly under continuous train traffic, leading to catastrophic rail breaks if left undetected. The ability to identify such internal flaws early is a game-changer for proactive safety management. 

Crucially, all these systems are not just about collecting raw data. Goldschmidt emphasizes the symbiotic relationship between the sophisticated sensor technologies and the equally advanced software designed for analysing the vast amounts of data generated. It is this intelligent analysis that transforms raw measurements into actionable insights, providing a clear picture of the track’s condition and enabling operators to define and prioritize necessary maintenance activities with strategic precision. 

Diverse approaches to customer collaboration 

Goldschmidt understands that a “one-size-fits-all” approach doesn’t work in the diverse global rail industry. Their customers employ a variety of strategies to integrate and utilise these inspection systems, reflecting different operational scales, technical capabilities, and business models. 

Large mainline infrastructure operators, such as Germany’s Deutsche Bahn, represent a long-standing model of collaboration. For over a decade, they have integrated Goldschmidt’s eddy current and ultrasonic systems directly onto their dedicated inspection trains. In this scenario, the operators themselves manage the day-to-day operation of the systems and conduct the initial data analysis, with Goldschmidt providing essential software support and expertise when needed. This demonstrates a high level of internal technical capability and a preference for in-house data management. 

A more recent trend, exemplified by a new fleet of inspection trains being delivered in Italy, showcases a different approach. Here, the local infrastructure operator has opted for complete, integrated trains, indicating a desire for a turnkey solution. Goldschmidt is delivering these together with an Italian partner. Significantly, this project also involves the delivery of specialized AI software for data analysis, highlighting a growing reliance on artificial intelligence to process complex inspection data and extract deeper insights, reducing the manual burden on analysts. 

Light rail infrastructure operators, including metro and tram networks, also benefit from Goldschmidt’s tailored solutions. These operators often require comprehensive integrated systems delivered on more compact platforms, such as rail-bound trailers or versatile road-rail vehicles. These specialised vehicles, manufactured by Goldschmidt (and notably showcased at the last InnoTrans exhibition), offer flexibility for urban environments where space and access can be limited. 

Finally, a rapidly emerging trend sees some customers opting for suppliers to operate the inspection systems themselves, providing the raw data as a service. This model shifts the operational burden from the infrastructure operator to the suppliers, allowing the operator to focus purely on the insights. Taking this a step further, some customers are even requesting direct recommendations on maintenance measures, leveraging their deep expertise in interpreting the inspection data. This “maintenance-as-a-recommendation” service reflects a growing desire for integrated solutions that streamline the entire maintenance planning process. The market for these services is developing rapidly, and Goldschmidt remains highly adaptable, open to discussing and tailoring solutions to these very different and evolving customer approaches. 

Goldschmidt’s enduring vision for the rail industry 

As a long-standing partner to the railroad industry and a proud family-owned company, Goldschmidt’s strategic approach has always been anchored in long-term reliability. This commitment extends not only to the consistent performance of their products but also to their unwavering dedication to supporting customers in overcoming their most pressing challenges. 

Just as Goldschmidt revolutionised rail welding over a century ago with the pioneering Thermit® welding process, they are now similarly committed to leading the charge in Inspection Solutions. Their long-term goal is clear: to continuously deliver and develop cutting-edge products and systems that empower railway infrastructure operators to effectively manage, improve, and ultimately optimise their track maintenance strategies. Today, Goldschmidt stands out with its unparalleled comprehensive product portfolio, extensive operational experience gained from diverse global deployments, and a robust track record of successful references in this vital field of activity. Their enduring legacy and forward-looking vision ensure they will remain a crucial partner in securing the safety and efficiency of global rail networks for generations to come.