Deleted
Deleted Member
Posts: 0
|
Post by Deleted on Jan 21, 2006 21:45:21 GMT
How do drivers approach speed restricting signals? (Ie - signals that clear once you get near them because you're at /below the speed limit?) Just carry on without any braking?
Also, are only certain signals 'draw up' signals, or is it LU practice that drivers have to draw up to all signals?
|
|
|
|
Post by q8 on Jan 21, 2006 21:49:26 GMT
Once a speed resticted signal has cleared the general practice is to coast until you either see a green then wind up or if it's red stop. You don't increase speed once the signal has cleared.
With draw up signals you probably need to motor in series until you get to the red signal it applies too
|
|
Colin
Advisor
My preserved fire engine!
Posts: 11,310
|
Post by Colin on Jan 22, 2006 0:34:41 GMT
Road training will reveal which signals are which, but ultimately, any driver who approaches a red expecting it to clear is a foolish individual! Approach controlled or speed controlled signals should be treated as per any other red signal - though it can be useful to know if the signal is likely to react to your trains presence. That is useful in terms of being aware that the signal may have failed.
Draw up signals are found where there is a converging junction. As with all things on LUL, there are exceptions, but the basic idea is:
If two trains passed the last 'controlled' signal a danger at the same time, and the full speed overlap is insufficient, they will collide. To prevent this from happening draw up signals are provided to slow the trains down to a safe speed. I'm sure some one can make that more understandable......
|
|
|
|
Post by q8 on Jan 22, 2006 6:00:30 GMT
Let's take an example then.
You are approaching Tower hill on the eastbound and the first home signal you see is EJ100 which has no telephone and has a safe overlap to protect a train in the platform. As you slow down to stop at it EJ100 will clear and the repeater beneath it [REJ1] will illuminate yellow. Without motoring you release your brakes and coast up to EJ1 and stop. This allows you use the telephone at that signal if you need to but has also allowed you to get closer to the train in front without compromising safety.
|
|
Deleted
Deleted Member
Posts: 0
|
Post by Deleted on Jan 22, 2006 12:07:13 GMT
So.... EJ1 is the next signal after EJ100? Any diagrams available?
|
|
|
|
Post by q8 on Jan 22, 2006 12:09:18 GMT
So.... EJ1 is the next signal after EJ100? Any diagrams available? |
|
Deleted
Deleted Member
Posts: 0
|
Post by Deleted on Jan 22, 2006 12:25:24 GMT
Ah i see
|
|
