Re: Crossing loop design (r.e. Southern Aurora crash)

["BJ" <macgunzal@bigpond.com>]

Lets cut all the crap and go back to smashboard signalling!!!!


>John Dennis wrote:
>
>> >I would love to see a system that tells you before you get there what
>> >is required. For example at the distant/last auto indicate three
>> >aspects -
>
>Victorian remedies :)
>
>> 1. going straight through;
>
>Top Green (G/R) - Expect next signal at Proceed, although the next signal
>(Home arrival) may be on Y/R and the Home Departure on R/R - this is where
>speed signalling comes in...
>
>> 2. stop required at home arrival;
>
>Top Yellow (Y/R) - Expect next signal at Stop.
>
>>
>> >3. stop required at home departure.
>
>Back to the speed signalling...
>
>> I could then set my braking for
>> >the required location. Maybe 1. could be G/R; 2. could be Y/R and 3.
>> >could be pulsating Y/R. Similar to NSW practice whilst retaining the
>> >lower red light (Vics have a problem getting rid of this ;-)).
>
>ok, lets see if this is too hard...
>
>signals read in order of auto, Home arrival, Home daparture.
>
>1) Straight thru loop:
>
>G/R, G/R, G/R.
>
>2) Stop required at Home arrival:
>
>Y/R, R/R - the home departure aspect is irrelevant here..
>
>3) Stop required at the Home Departure:
>a) via the main...
>
>G/R, Y/R, R/R. - This is a normal speed route because there is no
>diversion.
>
>b) via the loop...
>
>Y/G, R/Y, R/R - This is a medium speed route to take the loop.
>
>No pulsating / flashing yellows required
>
>> I agree, sounds reasonable to me - an amateur.  But, should there be a
>> difference in (3) if you are to be routed via the main line or the
>> loop?
>>