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RILA measurement system; Measuring without stepping onto the track

23.06.2022

For the Project Zee to Zevenaar, we have started a collaboration with BAM to bring the alignment to standard. The route 'Betuwe route' from Kijfhoek to Zevenaar has various deviations in height, shift, and level. Additionally, the ballast profile does not meet requirements at several locations. The route is 2x 100km with Meteren junction, Valburg CUP, and Zevenaar as terminals. The scope of work is to undercut 60 km of track and 22 switches in this 200km, profile 101 km of ballast, replenish 8500 tons of ballast, and correct overhead lines if necessary. Besides the alignment maintenance, 26 km of bedding plates will also be replaced, totaling 88500 pieces.

We started measuring the entire 200km in week 24, in weeks 35 and 36 we will replace 90% of the bedding plates, and in week 36 the first stop machines will start operating. For 2022, 24 deployments of stop machines and BDSs are planned, from week 36 to 48. Here, the 09-4X, 09-32/4S with BDSs from Swietelsky will work alongside the Unimat 205 with BDS from BAM.

To collect data for the stop and ballast work, we are working with subcontractor Fugro. The RILA system from Fugro Raildata is a measurement system that is attached to the buffers or coupling of a rail vehicle or passenger train. This system includes GPS, IMU, scanners, lasers, and video cameras. The system can measure accurately up to 160 km/h. On the Betuwe route, measurements are taken at 100 km/h. From this data, a point cloud and alignments are generated compared to the zero trace. This allows us to perform verification, record ballast profiles, check overhead lines, determine locations of signaling objects, and ultimately create a shifting file for the stop machine. This is done without stepping onto the track.