Mathematical Research into Noise Barriers Along Railway Lines

Module 804.5501, forming part of Deutsche Bahn's internal technical guideline number 804, requires generation of documentary evidence of fatigue properties for all components. The module indicates 2 methods for computing dynamic over-pressure and under-pressure effects operating on noise barriers to arrive at close approximations to real world conditions. This article compares the 2 methods, known as the precision method and simplified procedure method, in order to determine the accuracy of each.