ABSTRACT
Non-destructive dynamic testing such as excitation techniques that use an instrumented hammer and mounted accelerometers has been previously employed for evaluation of structural condition of the track. This paper shows in-situ application of impact hammer testing on an inactive railway line. The testing was done at two locations that had different substructure condition. Elements of railway track such as sleepers and rail were excited at different positions and the response was recorded at different points along the rail and sleeper. Corresponding frequencies and accelerance functions of railway track elements from different locations are calculated and compared.
