Re: ATP

[phaedrus@ultra.net.au (Darryl Georgee)]

"MattyQ" <matticue@corplink.com.au> wrote:


>mcfergus@my-dejanews.com wrote in message
><7cvufi$2tv$1@nnrp1.dejanews.com>...
>>> Actually, ATP is the correct term.
>>
>>That depends on who's definition you use! Some definitions consider that if
>>the system displays a target speed and target distance (as opposed to a
>>driver knowing the line speed based upon route knowledge and lineside
>>signals) it is an ATC system. Other definitions state that an ATC system
>must
>>be capable of controlling the acceleration and deceleration of a train
>>without driver intervention.


>In QR, both ATC and ATP can only take control of the braking system. The
>driver has full control of the train but if he ignores warnings issued by
>the ATC/ATP system, either a full service or an emergency application of the
>brakes will result, depending on the severity of the situation. It's just
>like a hi-tech VCS really.

>Therefore, the term Automatic Train Protection would be the correct one give
>the system does not actually control the train.

>Regards

>Matt Smith
>Brisbane, Queensland
>Reply to matticue@hotmail.com

>You can't slam a revolving door.

  Actually is isnt even as good as the VCS in that its quite
 possible to go to sleep and, as long as the speed doesnt get too high
 OR you encounter a red signal, you'll just keep going and going :-(
 Darryl.

 "Howling into hollow blackness,
   dusky Diesel shudders in full cry"
    Jethro Tull, Journeyman from the album "Heavy Horses"