Author(s): S. de Fabris, G. Longo & G. Medeossi
In recent years, on board digital train event recorders have been developed: these
devices allow the collection of very detailed data about train movements and
The new Italian ATC SCMT on board subsystem is combined with
the DIS (Driver Information System), which collects both kinetic behaviour and
all signal and balises messages.
Unfortunately, this large amount of data is
normally stored, but not used except for failure and maintenance management.
At the same time the use of micro simulation tools has been extended to large
As is known, a problem exists in the calibration and validation of
In this paper a new tool is presented.
This tool allows the analysis of real-life
collected data, to perform very detailed analysis of train movements, pointing out
speed depending on position and signal aspects, acceleration, braking curves and
dwell time graphically and by means of parameters.
Train behaviour can also be
connected to punctuality, to find out differences between on time and late
This tool may be very useful for large scale model validation, definition
of the stochastic behaviour of the system (travel time, dwell time, initial delay),
calibration of braking and acceleration curves for various train types and
acceleration percentage depending on different conditions.
In other words, it
allows a link to be set up between real data and micro simulation models.
has been tested in the north-eastern part of Italy.
In this case study a significant
precision increase in the stochastic simulation results has been reached.
railway simulation, railway planning, train event recorder.
Size: 855 kb
Paper DOI: 10.2495/978-1-84564-500-7/12
the Full Article
You can purchase the full text version of this article in Adobe PDF format for the above price. Please click the 'Buy Paper' icon below to purchase this paper.
this page to a colleague.