Abstract
Due to the high density of settlements in the Czech Republic, freight rail corridors are led through populated areas. Tracks are still dominated by noisy cars braked with metal brake blocks, which in the course of passage cause several times higher noise than modern cars with non-metallic brakes. Although these are the technical parameters that determine the noise level of a train, it is not possible to find out of any registry the proportion of obsolete noisy vehicles on tracks. The long-term objective of the project is to identify individual problematic trains in terms of noise. In cooperation with national railroad authority, a system has been developed that utilizes the CESVA TA120 measuring sensor network and is designed to provide to the railroad operator, in addition to all the train parameters that can be traced (carrier, time, weight, length, number of vehicles and axles, video recordings) other essential information about the passing train - sound exposure level of the train pass. The plan is to build a sensor network using the existing infrastructure so that a detailed overview of the noise level of each single freight train can be obtained.
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