What is TPWS?

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What is TPWS?

Post  Yownanymous on Fri Mar 21, 2008 11:45 am

1)What does TPWS stand for?
2)What differs it from standard AWS?

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Re: What is TPWS?

Post  170399 on Fri Mar 21, 2008 5:24 pm

all i know is it is called train protection warning system and it stops you going pass a red signal
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Re: What is TPWS?

Post  Yownanymous on Sat Mar 22, 2008 3:56 am

You've more or less summed it up, so I'll say you're right. However, TPWS is actually Train Protection and Warning System, but as far as I know, not many people know that and it doesn't really matter.

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Re: What is TPWS?

Post  Provincial on Tue Mar 25, 2008 1:12 pm

Yownanymous wrote:1)What does TPWS stand for?
2)What differs it from standard AWS?

1. Train Protection and Warning System

2. It is a totally seperate system to AWS. TPWS is normally invisible only operating when the train passes 'over speed' sensors too fast, or passes an energised 'train stop' which wont prevent the train passing a signal at danger, but should stop it within the overlap. AWS and TPWS are only wired together insomuch as you press the AWS button to begin the TPWS timout after a brake demand, whereas AWS is an active system always having a presence in the cab, either by way of a bell or a horn sounding.

Network Rail don't publish the settings for over speed sensors.

AWS and TPWS have their own rules and regulations, too complex to go into here.
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Does anyone have more information about the TPWS ?

Post  rapkeru on Tue Jun 16, 2009 4:21 pm

This is my licence project for college and i will need as much information as i can get about tpws .. thx

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