SPAD Indicators

[@harrycoffeynield6941]

I’ve just had a SPAD with my wife. I forgot our anniversary. I should have spotted the signals this week.

[@fetchstixRHD]

Oh, so you mean you didn't try to run a train- never mind...

[@Crewecabking]

Hahaha

[@Martindyna]

Danger indeed haha !

[@theprotagonist5265]

A moment of silence for Harry please 🫡

[@AntiComposite]

"Mom can we have TPWS" "No, we have TPWS at home" TPWS at home:

[@ElliottHurst]

TPWS 0.5

[@ChrisJohnson-te3eg]

Commonly known as the P45 indicator.

[@denelson83]

Also known as a "you are in big trouble" indicator.

[@kinkisharyocoasters]

Time to look for a new job indicator

[@klhudson9910]

"the driver must tell the signalman that the signal has been passed at danger" its like calling your parents to tell them that you did not do your homework at school.

[@straightpipediesel]

Unless you're at Southampton. There you get to tattle on the other driver.

[@fetchstixRHD]

"MOOOOM! I almost crashed the car"

[@iknowyoureright8564]

Lol…..I’m a signaller, I always feel sorry for the drivers, No point in giving them a hard time, they wouldn’t do it intentionally. Unless the driver tried to blame me……I’ve been told the signal went back to danger in his face, when I can clearly see the aspect didn’t change, in that case I I didn’t he driver not to worry and that S&T will download the sequence of events from their data loggers and all will become clear, they change their tune then. 😂

[@TroyVan6654]

Hmm, how do we alert the driver of a SPAD? I know, another signal! Surely the driver can't miss two signals in a row close together!

[@kenshin891]

If an American crew passes a red signal, they're likely getting sent home and told not to come back

[@pilskadden]

It seems strange to install another signal to compensate for a missed signal. In Germany they have used Indusi magnets since the 1930's. Passing a red signal will automatically trigger an emergency brake application - not relying the driver to do it. I'm aware that UK railways now use TPWS which performs a similar task, but this was only installed around the year 2000.

[@SgtChip]

It's cheaper, probably, and it's easier to get passengers to trust humans at the controls than an automatic system.

[@fetchstixRHD]

Mind you, this was about the time that ATP was being trialled and was planned to be implemented, I would guess that the SPAD indicators were a quick fix while waiting for the outcome. On that note, I wonder why Indusi wasn't chosen for the train stop feature, was it more expensive? Taking the Tyne and Wear Metro track share, there doesn't seem to be an incompatibility, at least infrastructure-wise...

[@IIGrayfoxII]

Its never a bad idea to have a fall back. Some common SPADs are done at stations, driver gets distracted and is at a low speed that automation is not needed.

[@carmattvidz4426]

Wow, it scary to think once upon a time a SPAD could happen and the signal men would not know. I've heard a false spad alarm in the background of a radio call. It is very loud. Thankfully, today when a SPAD does occur the signal men know right away.

[@charlotteclarke4665]

We need these on the road, TPWS too.

[@nigelkthomas9501]

I’ve always wondered what this showed when lit up. Now we know.

[@RipperBravo]

Unintentional ASMR.

[@nevango0690]

The driver looks like Adam sandler

[@Brandon-ev8sf]

This is a Railtrack short and not a Network Rail short.

[@SportyMabamba]

Still got the narrator from the BR days but he sounds sad on this video

[@cjmillsnun]

To be fair, Railtrack PLC (In Railway Administration) became Network Rail Infrastructure Ltd and does still exist. Railtrack Group PLC is now RT Group PLC

[@alstorer]

some of this country's worst rail disasters have involved SPADs- eg the Harrow & Wealdstone disaster in the 50s

[@denelson83]

And more recently, the Ladbroke Grove collision.

[@PottersVideos2]

5:10 That is a Class 144 Pacer

[@qtrainprod]

2:16 And thats a Class 442 Wessex Electrics

[@quintoflyer]

In the 1960/70s Drivers were fully aware of their Duties. I spent 10 years as a fireman/secondman. not once did I have a Driver that passed a signal at Danger. Thou I will admit speeds were slower,

[@IIGrayfoxII]

But brakes were shitter and trains where made from heavier materials too.

[@dwightstewart7181]

If you see a signal, how do you stop in time to avoid running it? Most signal devices don't appear to be visible, especially in adverse lighting conditions, at a distance sufficient to stop a heavy train before reaching them.

[@DanielsPolitics1]

Red signals are preceded by a yellow signal, warning the driver to slow down to the speed they can stop from.

[@PottersVideos2]

And also because you will already know where the signal is from your route knowledge.

[@SportyMabamba]

The thing that nobody is telling you, is that trains are not driven according only to what distance you can see ahead (like a car). Under normal conditions the driver will not have a red signal thrown up in his or her face, hence the Green > Double Yellow > Single Yellow > Red graduation tells them to start slowing down in plenty of time (things like rail adhesion, brake contamination, etc, notwithstanding).

[@leavethisisadeadaccountree2646]

2006-The Death of RailTracj

[@nothisispatrick6180]

Bloody hell the NRN radio is old its all GSMR now

[@colinvespa4709]

How common is a SPAD these days ?

[@leavethisisadeadaccountree2646]

Railtrack*

[@kinkisharyocoasters]

They should have sirens

[@spacefallsFH]

Bit hard to hear in a cab

[@ELPaso1990TX]

What is a P45 indicator?

[@darrencafferty]

+Ben Elias lol

[@PottersVideos2]

That is a "You're fired" indicator.

[@tech4pros1]

A P45 is a bit of paper you get here in the UK when you leave a job for whatever reason, it's to do with taxes. A US 'pink slip' is it's rough equivalent.

[@peskybee22]

this never happened did it?

[@christopherwhitelaw1197]

Isn’t it about time all signals were standardised? Too many ifs and buts for me.

[@eddherring4972]

I’d just back it up and hope no one else noticed, they’re probably fixated with their phones anyway

[@leavethisisadeadaccountree2646]

2001*

[@tubester4567]

If I was the driver I would say it wasnt me, someone moved the signal, probably vandals.

[@PottersVideos2]

Thank fuck you're not a driver then!

[@pwhnckexstflajizdryvombqug9042]

Why don't they just install train trips?

[@youcanpunchmeintheface]

apparently simple tripcock is too sophisticated for railtrack

[@flyboy747uk]

SesamaLho It’s TPWS now which is like an Electronic Trip cock. An old Mechanical Trip Cock will only work if the train has a brake pipe as it works by venting the air out of the brake pipe which will cause the trains brakes to apply. Modern trains do not use a brake pipe anymore the fail safe system works through electronics.

[@milkandduckrailway323]

London Underground do have tripcocks

[@mulesz]

They have TPWS now - train protection warning system. There are 3 components to it: AWS- automatic warning system, OSS - overspeed sensor and trainstop - the latter works in conjunction with the stop signal and the tripcock. If a train passes a signal at danger or approaches a red, yellow signal, speed restriction or buffer stop too fast it will trigger a brake demand and will stop the train. Not all stop signals are equipped with tpws, it is based on a route complexity risk assessment, for example signals protecting junctions, crossover points and level crossings will be equipped with TPWS.

[@straightpipediesel]

London Underground's rail cars are light, go relatively slowly, and therefore stop quickly, hundreds of yards. Heavy rail trains take far longer to stop, 1-2 miles. So if you had a train trip at the signal, it would still crash, or else you'd need to stop 2 miles before any rail junction. You need a smarter system that takes train speed and stopping ability (length, weight, type) into account.

[@markgomm]

@ThePump62 Do you really think anyone cares with such an out of date production. The producer, Railtrack doesn't even exist anymore!!

[@binarysignals9593]

45000 views...

[@williamhuang8309]

Rail historians, besides, what's wrong with uploading a far-out-of-date production from a company that used to exist?

[@johnkelly1083]

This is a very strange comment...

[@CosgroveNotts]

Rail signaling is a mess, I'm surprised there isn't more accidents