For the homologation tests HGK DE 11 had to run about 140 times across a switch in Breda (NL) in order to assure this heavy 6-axle locomotive was not an infrastructure killer.

A couple of years later the Dutch rail infrastructure manager wanted to stop all Class DE 1024 locomotives, since they forgot to check their ability to cross bridges... As that was practised many times in the meantime, it was a no-brainer ;-)

Done