Analysing railway infrastructure quickly, accurately, and efficiently is now a reality. But how? Through automated reverse engineering, track geometry—both horizontal alignment and longitudinal profiles—can be precisely determined.
Why is Reverse Engineering Important?
Railway tracks are not static. Track geometry shifts over time due to component wear, train movements, ground instability, and other factors. Additionally, historically accurate survey data may not always exist, making it even more critical to obtain precise, up-to-date measurements. For safe operation, maintenance, and modernisation—including the implementation of ERTMS (European Rail Traffic Management System)—rail operators require reliable and current track geometry data.
How is Track Geometry Obtained?
Traditionally, reverse engineering Track Alignment Reference has been a complex and time-consuming task for railway engineers. It involves iterative calculations to determine the mathematical parameters of curves, along with replotting and redrawing, often relying on expert intuition and extensive experience. This manual process, carried out by skilled engineers, can take weeks to complete.
To automate and enhance this process, SNCF Réseau, setec railway, and The Cross Product (TCP) have partnered to develop a software solution for analysing track geometry using 3D LiDAR data.
A Significant Advancement
A successful pilot project on the Cannes–Grasse line (~16 km) demonstrated that this system can generate track geometry analyses, including horizontal alignment and longitudinal profiles, in just 30 minutes—a process that previously took weeks. The results, compatible with LandXML, Civil 3D, and RailComplete, highlight the accuracy and efficiency of this cutting-edge approach.
Transforming Railway Infrastructure Management
By integrating industry expertise, artificial intelligence, and 3D LiDAR technology, The Cross Product’s automated reverse engineering solution is revolutionising railway infrastructure management. It enables:
- Rapid and precise track geometry analysis
- Enhanced safety and regulatory compliance
- Optimised maintenance and modernisation planning
This breakthrough improves railway network efficiency, ensuring safer, more reliable, and future-ready infrastructure.
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