Bibliographical study and presentation

Analysis of existing computer programs

Tests and measurements carried out when passing over the Hörstel and Plattling bridges

Effect on comfort of vibrations generated when passing over bridges

Comparison of the results of calcula tion and measurements on two bridges Selection of the most suitable computer program

Final report

Results of acceleration measurements taken on the track under 20 and 22.5 t axle loads

Analysis of dynamic measurements taken with the ORE measuring train with axle loads of 20 and 22.5 t

The influence of wheelflats on the track with 20 and 22.5 t axleloads

The dynamic effects due to increasing axle load from 20 to 22.5 t and the estimated increase in track maintenance costs