Re: Signalling in Victoria

[cmgord@ecr.mu.oz.au (Christopher_Martin GORDON)]

Clear Low Speed: Dwarf Signals (3 position area)
When Clear low speed is displayed (green light, on a dwarf signal) the
signal indicates the following:
1) The points are set for the movement
2) The line is clear to the next signal
3) The next signal is at 'proceed' (ie, not 'stop')
4) the speed of the train must not exceed 15 km/h
(the speed restriction for low and medium speed apply to the whole section
up to the next signal.)

So no the train can not speed up once over the points, it must not exceed
15 km/h until the next signal.


: > > All dawf signals are three position (in three position signalling area) but
: > > some only show two aspects.  The signals at either end of the centre road of
: > > Clifton Hill are three aspect with trip levers.  Are these dawfs, or home
: > > signals, or something else?
: >
: > Dwarf signals:
: >
: > Red= stop
: > Yellow = proceed at low speed, expect to find line obstructed / occupied.
: > Green = proceed at low speed, line clear to next fixed signal.

: Box Hill, Camberwell & Dandenong, to name just three, had dwarf signals which
: displayed all three aspects.

: >
: >
: > These signals have been in use at some time at other locations.
: > The beauty is at the Down end of Somerton Loop from 3 & 4 roads, on the Std
: > Gauge...
: > It displays yellow for moves to Blue Circle cement sidings (controlled from
: > Somerton Box) and
: > Green for moves to the main line (controlled from Centrol).

: The rule about these signals was that although you proceeded at low speed onto the
: main line with a green aspect the train could accelerate to line (or train) speed when
: the train was clear of the turnouts for which the signal was provided.

: >
: >
: > I do think the "local" rules applying to these types of signals are based on the
: > needs of the location.

: See above.

: DEL.


--
Chris Gordon
http://www.ecr.mu.oz.au/~cmgord