Re: ATP

[bub123@hotmail.com]

MattyQ wrote:
> 
> mcfergus@my-dejanews.com wrote in message
> <7cusb6$836$1@nnrp1.dejanews.com>...
> >Thanks for the detailed info! The Ericsson system (now ADtranz Ebicab)
> sounds
> >like the same one that is used on SLR here in Sydney, although maybe a
> >different version. The Westinghouse system sounds similar to the Level 2
> >version of ERTMS (European Rail Traffic Management System). Radio based
> >signalling is generally seen to be the way of the future for mainline
> railway
> >signalling schemes, so it will be interesting to see how able Westinghouse
> is
> >to succesfully implement the project.
> >Rob
> >
> >Sydney (Australia)
> 
> I'm not sure about the SLR. I was not given the opportunity to inspect the
> drivers cab when I last rode it. It is, however, almost identical to the
> system used on the Westrail/Transperth EMU's although they call it ATP.
> Actually, ATP is the correct term.
> 
> With the QR ATC system, the driver is required to enter a set of figures
> into the ATC console before the journey commences. The figures are included
> on the bottom of the train sheet and tells the computer the length, weight
> and maximum permissible speed of the train. A bank of thumbwheels are used
> to enter the information.

Just to correct this the information on the Train Wire does not include
weight.

That information is done by the Rics system that knows what vehicles are
in the train and how well they brake etc, this is then calculated to a
deceleration figure which is entered in the thumb wheels.

Brian