In Lolland, Denmark, the railway is getting prepared for heavy traffic caused by the construction of the Femern connection. This will connect Rødby in Denmark to Puttgarden in Germany.
As part of this project, Aarsleff Rail is assigned the task to expand the railway from one to two tracks in Masnedsund. This is a critical task since the original track will be active throughout the process. The task involves widening the current embankment and placing a new track bed beside the current. This exposes the current track to heavy vibrations and a risk of slippage in the embankment. It is therefore very important that Aarsleff has a constant overview of the track, to make sure that the track is safe for the passing of rolling stock.
No traditional method could be used in this case, and as a result, Railmonitor was asked to provide a solution. The solution was to install wireless and highly reliable tilt sensors on the sleepers of the track. We then turned the sampling frequency up, so that the sensors sent out measurements every minute. With train traffic every 15 minutes, the employees are sure to get a notification in time to take action before the next train passes by.
Henning Grønbæk from Aarsleff Rail tells about how the system is used in Masnedsund. Video in Danish with English subtitles.