The article describes the principles of measuring track gauge and flangeway width based on current regulations on railway lines in Poland and Germany. Subsequently, the methodology for performing continuous measurements of track gauge and the difference in rail height in railway turnouts using the TEC1435 electronic track gauge is discussed. Special attention is paid to the repeatability of measurement results, taking into account the direction of travel with the track gauge on the main and diverging tracks, as well as passing through areas of rail discontinuity.All turnouts are subject to periodic inspections, which include: checking the technical condition of all structural parts, checking the geometric layout of turnouts and track crossings, checking the operation and assessing the maintenance status, as well as measuring track gauge, cant, flangeway width, and other parameters indicated in the periodic turnout inspection sheets.
In the currently applicable regulations regarding turnout inspections [6], we can therefore distinguish two stages: assessment of the technical condition of structural parts (including maintenance) and geometry measurements. (…)
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Source: Logistyka Magazine
Continuous measurement of track gauge and cant in railway turnouts – PDF file for download