[PRCo] Re: "place curves"

[Edward H. Lybarger]

What is meant by "placing a curve" is constructing track at an intersection
to enable a turn that was not previously possible.  Franchise requirements
could get pretty silly, couldn't they?

Ed

-----Original Message-----
From: pittsburgh-railways-bounce at lists.dementix.org
[mailto:pittsburgh-railways-bounce at lists.dementix.org] On Behalf Of Phillip
Clark Campbell
Sent: Wednesday, April 18, 2012 9:26 AM
To: pittsburgh-railways at dementix.org
Subject: [PRCo] Re: "place curves"

----- Original Message -----

From: Derrick Brashear <shadow at gmail.com>
To: Pittsburgh Railways Group <pittsburgh-railways at dementix.org>
Cc: 
Sent: Tuesday, April 17, 2012 11:28 PM
Subject: [PRCo] "place curves"

I have to assume they meant crossovers.

http://news.google.com/newspapers?id=sx4bAAAAIBAJ&sjid=1kkEAAAAIBAJ&pg=3494,
2192728&dq=east-carson+railroad-crossing&hl=en

article about ordinances referencing PRCo underliers in 1922

--
Derrick

-----------------------------------------------------------
Mr.Brashear,

Turns could be substituted for curves which would include any hardware
necessary to make the turn.  Intersections 'evolved' over time depending
upon need.  This is generic for the details and seems better reporting than
what I have seen recently on similar matters.

More interesting is the reference to "underlying companies" of Prc
suggesting they had a life of their own -- these companies actually
installed the turns seems to be suggested.

As an aside:  These curves or turns would include turnouts and crossings
thus adding function to the intersection.

On street railways a crossover on double track allows a double-end car to
change directions.  These crossovers are generally trailing 'turnouts' in
normal operation. 

Some mainline RR fans claim a crossover doesn't include turnouts but only
diamonds like "Diamond" now Forbes crossing Smithfield.  Use of 'crossover'
for same indicates "up & Over" while 'crossing' indicates physical contact
with another line.
Maybe I misunderstood what these RRers were saying!


 
Phil