In order to test the behaviour of light two-axle freight wagons when using a DAC in addition to four-axle freight wagons, a Hbbins type closed sliding wall wagon was selected as the third wagon category. A total of 45,345 “H” type freight wagons are in use throughout Europe. This means that in total, the three selected freight wagon types represent 269,742 freight wagons in Europe. As well as this, the selection laid out above means that the test results can be transferred to other two-axle and four-axle freight wagons with comparable dimensions.
All wagons are equipped with LL or K soles for the brakes, meaning they will comply with the legal requirements according to TSI Noise.
1See Liebing, S. (2018), Quantification of the need to retrofit freight wagon fleets in Germany and member states of the European Union in light of the differing legal frameworks, TÜV Rheinland InterTraffic GmbH on behalf of the Eisenbahn-Bundesamt (Federal Railway Authority), Berlin, 2018.