[PRCo] Re: 1019

[Jim Holland]

Hi Dennis!


Good to Know~!

Especially the Yellow Tie~!

In San Francisco, we use yellow dots in the pavement  --  about a foot 
in diameter  --  for Each And Every Overhead Insulator in addition to 
Switch Pan  --  but Switch Pans are No More  --  they use that stuff 
embedded in the street for new installs  --  lrvs use track detection 
circuitry and an oscillating light to show intended direction  --  when 
light has cycled to your intended direction  --  move into the track 
block which sets and locks the turnout  --  solid white light comes on 
when it is locked.     Each truck on the train of lrvs will move into 
this block before the other has left it to keep it locked for the train.

With the switch pan marked with a yellow dot, it was easy to hit them 
properly with Power On, even though the Torpedoes which were over 5-feet 
longer than the other equipment.

In PRCo days they didn't have this marking in the pavement and I never 
saw anything wayside nor did ops mention anything about markings to 
indicate switch pans and insulators  --  this makes it a little more 
difficult except that with PCCs one just pressed the dash toggle for 
diverge so that could be on a little in advance without causing problems 
like hitting the power too soon and speeding into the switch~!~!~!




Dennis F. Cramer wrote:
> Yes, PTM has overhead contactors in 2 places. The one that is in 
> service is the approach to the yard from the original PRCo right of 
> way. The difference is we coast to diverge and draw power to go 
> straight into the yard. The reason being we diverge to head to the 
> Arden Valley more than we go into the yard and it makes things much 
> easier on the equipment and operators.
>
>
> Look for the yellow tie before Museum Road.   That tells the operator 
> his pole is approaching the contactor (which is behind his position at 
> the other end of the car).
>
> Dennis Fred Cramer
> Trombone