Light rail, tram track and turnout geometry measurement and diagnostic tools

The paper explains the need to collect and store track and turnout geometry information and how to determine their condition in the form of synthetic quality coefficients. Catenary data feature an example of the additional line information that can supplement the infrastructure information database. The concept of line-speed dependent track parameter tolerance values is presented. Analysis of the temporal trend of the track and switch geometry change calls for measurement data storage and analysis. The relevant database system is described along with the examples of queries. Real life examples and experience with this methodology of track and switch geometry parameter analysis in Poland and other EU countries are presented. The diagnostic module indicates the "weak locations" in the track, which can be further analysed in detail by the diagnostician. For the covering abstract see ITRD E129315.