Great photos in Newcastle remembered noel i never been to Newcastle will
get there after new line opens
On 26 Apr 2017 7:01 pm, "'Noel Reed'noelreed10@...
[TramsDownUnder]" TramsDownUnder@...> wrote:
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> On Tuesday 25/04/2017 7:08 PM Matthew Geier wrote –
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> Croydon Trams have since installed radar triggered speed warning boards
> pretty similar to what the IWLR has at two 'at risk' locations. If a driver
> approaches Sandilands Junction at too high a speed now, they get a flashing
> overspeed warning - and they have put an advance intermediate speed board
> in so the speed limit doesn't drop from 80 to 15 in one step. The flashing
> warning is at the first speed drop, so it's hopped the big flashing sign
> will get the driver attention before minimum required braking distance is
> reached.
> ..................................
>
> Does the radar triggered warning cause an audible alert to the tram driver.
>
> If a warning was not acted on by the driver would the tram be slowed or
> stopped by braking ?
>
> Noel Reed.
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> *From:*TramsDownUnder@... [mailto:TramsDownUnder@
> yahoogroups.com]
> *Sent:* Tuesday, 25 April 2017 7:08 PM
> *To:*TramsDownUnder@...
> *Subject:* Re: [TramsDownUnder] London - Croydon tram crash 2016: Drivers
> 'fell asleep' on fatal line
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> On 25/04/17 16:15, 'Noel Reed'noelreed10@... [TramsDownUnder]
> wrote:
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> > .........................................................
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> > Could a tram accident similar to that at Sandilands Junction UK in
> November, 2016 happen with an Urbos 3 tram on Sydney’s IWLR if a driver
> fell asleep approaching the curve to Darling Drive near the Power House
> Museum ?
> >
>
> I don't think the curve is quite as tight, and the approach speed is much
> much lower - with the Exhibition station only 200m or so from the curve,
> not so much opportunity to pick up speed. At Sandilands Junction the curve
> is preceded by a long straight (1100m) with quite high running speeds
> (80km/hr), and when not in tunnels, much of the line is in deep cuttings,
> meaning not a lot of really obvious visual cues - especially in the early
> morning with rain and or fog.
>
> The accident occurred in the early morning before sunrise and it was
> raining. Even fully rested I can see how 'loss of locational awareness'
> could happen. I've stood behind the drivers cabin on this line and seen the
> speed they go down that straight and how 'dark' even in full daylight that
> section of line is.
>
> Croydon Trams have since installed radar triggered speed warning boards
> pretty similar to what the IWLR has at two 'at risk' locations. If a driver
> approaches Sandilands junction at too high a speed now, they get a flashing
> overspeed warning - and they have put an advance intermediate speed board
> in so the speed limit doesn't drop from 80 to 15 in one step. The flashing
> warning is at the first speed drop, so it's hopped the big flashing sign
> will get the driver attention before minimum required braking distance is
> reached.
>
> The final inquiry report will probably make interesting reading.
>
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