Understanding how the loading produced by passing
trains deteriorates railway
track components – the rails
and roadbed layers – can
help to predict when failures
will occur so that timely
action can be taken.
Dynavoie is a software
program intended to provide
this understanding. It is not
the first such program, but it
is special in that it has the
capacity to make rapid
calculations using the finite
elements method, which
assumes that the modelled
objects are a continuous
rather than granular system.
SNCF Research is working to
validate the first prototype
by comparing calculations
made by the program with
readings taken at various
locations, in particular on
the Paris-Lille TGV line.
The Engineering and
Infrastructure Departments
may eventually use this
software tool to better
understand the behaviour
of railway tracks and
improve their specifications.
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