Principles Course
August 26, 2025
WRI 2025 InfoZone
The InfoZone is an interactive learning environment that is designed to augment the information presented at the annual Rail Transit Seminar.
Our InfoZone partners offer high-quality technical information on the aspects of wheel/rail interaction that they know best. These sessions, which are built into the Rail Transit Seminar program, are designed to provide small groups of approximately 30 delegates insight into the product or service that is the specialty of the presenting company. The goal is to promote a better understanding of the dynamic interaction between vehicles and track. This innovative concept has consistently received great reviews from participants and InfoZone Partners alike.
Meet Your InfoZone Partners
Review the InfoZone Abstracts
Hexagon | NEXTSENSE - Predictive maintenance with CALIPRI for Vienna public transport
The presentation titled "Predictive maintenance with CALIPRI for Vienna public transport" outlines the challenges faced by customers in the rail industry, such as safety requirements, economic and environmental demands, and the need for high vehicle availability. It introduces CALIPRI, a precise 2D profile measurement system that uses patented laser light section technology to provide highly accurate and reliable results.
The presentation highlights the CALIPRI X system, designed for automated measurement of all wheelsets, suitable for 24/7 year-round outdoor operation. It also emphasizes the benefits of centralized data availability through CALIPRI Predictor. With our solutions, we are closing the loop: from measuring with CALIPRI X, to condition monitoring and demand planning via CALIPRI Predictor – providing a complete, data-driven approach to predictive maintenance.
The main topic is the implementation of CALIPRI X in Vienna which has led to reduced downtime, better resource planning, and significant maintenance cost savings.
In essence: Wiener Linien successfully minimized unplanned maintenance, mainly the need to swap and turn wheels, almost to zero! This achievement allowed Vienna's public transport team to save over 4 million euros by eliminating the need to keep two vehicles on standby for unexpected stoppages.
Linsinger - Rail Maintenance Strategies
Extending the service life of the rails efficiently depends on how the rail reprofiling (surface removal) is done as well as when and where it is done. More frequent monitoring of the rails condition with suitable measuring methods opens for efficient condition-based removal of defects in early stages. The presentation describes the potential benefits by condition-based rail reprofiling as an alternative to the widely used cyclic grinding today.