|Summary of Software Functionality|
PC-Rail simulation software provides detailed and realistic
modelling of railway operations, accurately representing the
running of trains on the corresponding real network, especially
in areas of significant operational complexity.
The software is based on a general data model of railway networks
and their operation, defining three main groups of data:
- Network and signalling
- Timetable and trains
- Dynamics, describing the interactions between the other
Within the software, the following major functions are implemented:-
- Train running logic
Movement of trains is regulated according to the signal
routes which are set, together with the data held for permitted
speeds of trains and track sections, scheduled station stops,
- Interlocking logic
This represents the logic incorporated within the signalling
system which is in use at the simulated location and ensures
- Signalling control
The same facilities as in the real signalling control
centre are provided for the manual setting of signal routes
in order to control the running of trains. Automatic and
semi-automatic signals are also provided in accordance with
- Timekeeping measurement
The software monitors and reports performance in terms
of timekeeping and correct routing for each train and overall.
The track diagram display is largely in accordance with
current practice in a British IECC. The display is continuously
updated to provide full visualisation of train operations,
including the current state of each section of track.
Provision is made for alternative timetables to be run. A
timetable editor is also included to allow timetables
to be edited and created for use with the simulation.
Simulations can be run at normal speed and at a range of speeds
slower or faster than real time. Late running of trains can be
simulated with delays occurring randomly within the parameters
selected by the user. The incidence of traction failures is provided
for in a similar way, with a number of options being
provided to the operator to deal with such events.
John D. Dennis