Topic: Railway Signalling
Not finding your answer? Try searching the web for Railway Signalling
Answers to Common Questions
Who invented railway signals?
Answer Albert Hunt, a mechanical engineer at Southern California's Pacific Electric (PE) interurban streetcar railroad, who invented it in 1909 out of the necessity for a safer railroad grade crossing. Read More »
Source: http://wiki.answers.com/Q/Who_invented_railway_signals
How railway signalling works?
I can tell you the basics as it's a very simple concept.Think of it like city blocks with a signal at each end.When a train is stopped ahead of you in a block you will get a flashing yellow(reduce to 40mph),then a yellow(reduce to 30mph),th... Read More »
Source: http://answers.yahoo.com/question/index?qid=20100420214356AAZsxdM
How railway signals work?
Where i work our territory is CTC which stands for centralized traffic control.In CTC there are control points which are controlled by a dispatcher from a remote location.Using a computer he can authorize trains using absolute signals.He al... Read More »
Source: http://answers.yahoo.com/question/index?qid=20080827045519AAHDeYF
Featured Content:
Railway Signalling
More Common Questions
Answers to Other Common Questions
Joseph James Stevens invented the Semaphore or first danger signal fo...
Read More »
Source: http://www.chacha.com/question/who-invented-danger-signal-for-rai...
Signal Problems can also be used as a simple summary of a more complex issue. For example on many railways there is a small current in the running rails which, when connected by the train wheels, tell the signalling system that the track is...
Read More »
Source: http://www.quora.com/Why-do-railway-signals-fail-so-often
It is not GPS technology. There are several GPS systems being tested but GPS is not accurate enough to know for certain if a train is on a specified track or the one adjacent to it. In cloudy weather GPS can be off by 15 or 20 feet and that...
Read More »
Source: http://answers.yahoo.com/question/index?qid=20080223001134AAkjy6g
Railway signals consist of three main types: 1. Signals warning the driver of a train to slow down and stop at the next signal ahead, or telling the driver the next signal is clear; 2. Signals ordering the driver to stop, or to proceed if t...
Read More »
Source: http://answers.yahoo.com/question/index?qid=20091130232712AAYCM3o
Light signals: 1. Red - danger, stop 2. Yellow - proceed, caution, next signal is red 3. Double yellow - proceed, caution, next signal is yellow 4. Green - proceed, line clear Line of white lights at an angle over signal: you head this dire...
Read More »
Source: http://answers.yahoo.com/question/index?qid=20091224145412AAnhMeI
Track circuits allow railway signalling systems to operate semi-automatically, by displaying signals for trains to slow down or stop in the presence of occupied track ahead of them. A track circuit typically has power applied to each rail a...
Read More »
Source: http://answers.yahoo.com/question/index?qid=20080622054011AA0c8RQ
