OT Where is Ladbroke Grove [was Re: Safety first in rail system's radical revamp]

["Arthur Marsh" <mars0177@flinders.edu.au>]

Where is Ladbroke Grove in the UK, and where is Ladbroke Grove in South
Australia?

"John Kerley" <deaftech@ozemail.com.au> wrote in message
news:ZKLO5.22474$SF5.451867@ozemail.com.au...
>
> <signal_spotter@my-deja.com> wrote in message
> 8udaqi$ka$1@nnrp1.deja.com">news:8udaqi$ka$1@nnrp1.deja.com...
> > We have the expertise right here in Australia to install an ATP system.
> > See http://www.westsig.com.au/DEPT/Marketing/common/datasheets.nsf/Data%
> > 20Sheets?OpenView&Start=1&Count=30&Collapse=1#1 for details (Look under
> > Control systems). An interesting point is that the UK are in the middle
> > of a debate (see uk.railway newsgroup) about whether to continue with
> > ATP or put in a lesser (but still as safe) system called TPWS (Train
> > Protection Warning System) which basically is the magnetic equivelant
> > of trainstops and Intermediate trainstops. The pollies don't need to go
> > on a 'fact finding' mission. They only have to consult the experts.
> >
> > regards Ian
> >
> >
> > Sent via Deja.com http://www.deja.com/
> > Before you buy.
>
> Is TPWS really "still as safe" as ATP? If so, why the furore over
installing
> TPWS instead of ATP in Britain?
> You can still travel a long way past a SPAD after being "tripped" at line
> speed.  Whilst TPWS is a little more sophisticated than that, it still
does
> not provide the more continuous speed monitored control that I understand
> ATP does.
>
> Having said that,  on a "cost - benefit", or "cost per fatality prevented"
> basis TPWS is probably a reasonable choice when compared to the cost
> prepared to be spent of accident reduction measures on the road, or more
> relevantly, the lack of cost.  Cars  have no speed control or SPAD
> prevention devices.
>
> It is interesting that the Brits did not adapt their magnetic AWS devices
to
> be SPAD "trips" on mainline tracks many years ago, given that like
Melbourne
> and Sydney electrified suburban lines, the tube has had mechanical trips
> since early this centuary. It almost certainly would have prevented the
> Ladbroke Grove accident.
>
> Cheers,
>
> John Kerley
>
>