Gotcha Monitoring Systems ®

Global References


Since 2001 first generation Gotcha Monitoring Systems® were installed in the Netherlands. The experiences with the system were very positive since then Lloyd's Register and SST have been working on further developments. Now, the third generation is as a platform commercially available.
Currently the Gotcha is installed in various countries throughout Europe.

The Netherlands

Following the European tender of the Dutch infra manager ProRail, the "Quo Vadis" project will see the 41 existing 1st generation Gotcha monitoring systems in the Netherlands replaced by the new third-generation Gotcha Monitoring System.
Gotcha will provide real-time information about axle loads, load imbalances, the quality of wheels and train speed. ProRail uses this information in their Quo Vadis system for track access charging, asset protection and maintenance planning. The modular and scalable platform can also be used for monitoring of pantographs, axle boxes and noise emissions.

More than 95% of the passenger rolling stock in the Netherlands is maintained in the workshops of NedTrain, a subsidiary of 'Nederlandse Spoorwegen' (Dutch Railways). NedTrain has the data of 17 of ProRail's Gotcha systems at its disposal. The data is used for wheel maintenance. Since 2002 the maintenance of wheels is to a large extent based on the information of the Gotcha stations.

In co-operation with Belgium the Dutch government has built a new high speed line between Amsterdam and Paris, called the HSL-zuid. Two Gotcha Monitoring Systems® have been installed at two strategic locations along the 125km high speed line. Both locations have a double track system, equipped with the modules WIM, WDD and AVI (Automatic Vehicle Identification). The slab track line is designed for trains up to 300km/h, and during tests Gotcha has proven its full functionality at speeds in excess of 330km/h.
The track maintenance is contracted by Infraspeed for the next 25 years, Gotcha will be used for asset protection and condition based maintenance. Also the rolling stock of HSA (High-Speed Alliance) will be maintained by NedTrain based on Gotcha data.


In the second half of 2005 a Gotcha system was installed in Kiruna, Sweden. This system has been subjected to an extensive testing protocol by the Swedish infrastructure manager Banverket. The system has been successfully tested for:
  • Stable operation (at extreme temperatures)
  • Measuring of vehicle weight and axle load
  • Measuring of (severe) wheel defects
  • Measuring of impacts with impact hammer and track loading vehicle

PKP Polskie Linie Kolejowe S.A. (Poland)
Following a successful trial installation on the Poznan-Szczecin line in 2006, more than 30 systems are successfully implemented on the Polish network. Lloyd's Register's partner TENS integrated the Gotcha system in their ASDEK system which is in use by the Polish railways throughout the country. Mainly freight trains are passing this wayside measuring locations, combined with a certain amount of passenger trains. Both the WIM and WDD-functionality of the Gotcha system have been certified .

Network Rail (U.K.)
Following successful trials at Sevington and Banbury, full product approval has been achieved for use of the Gotcha Monitoring System throughout the UK rail network. As at April 2009 there are five Gotcha systems in use by Network Rail, including a mobile system.

Rhätische Bahn (Switzerland)
The Swiss operator & infrastructure manager Rhätische Bahn wants to use Gotcha for condition based maintenance of their rolling stock. In September 2006 the first Gotcha system was installed in the Vereina tunnel (rock subgrade). This has offered Lloyd's Register the possibility to test the Gotcha system in a highly conditioned environment. In Switzerland Lloyd's Register has partnered with Bombardier Services. Bombardier uses the Gotcha data for their fleet management system.

Réseau Ferré de France
Lloyd's Register and Réseau Ferré de France (RFF) have launched a joint project with a Gotcha Monitoring System®. RFF's key aim from this installation is to have better information about axle loads, load imbalances and the quality of wheels to provide a basis for improved maintenance and asset management. This information will enable RFF to manage the risks imported on the rail by wheel defects. Lloyd's Register has installed this asset protection system on a busy line of the French rail network in Valenciennes. As part of the implementation, two noise monitoring terminals were installed.

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