[net.railroad] railroad gauge; book recommendation

stimac@tymix.UUCP (Michael Stimac) (02/12/86)

A poster asked recently why, if British engineers were involved,
the gauge of certain railroads was not the same as British gauge.
Leaving aside the over-simplification of assuming that all RRs
in a given country are of the same gauge, the answer to this
question is that choosing the gauge of a railroad to be built
is both an engineering and financial decision, not a mere
convention to be carried over from the last railroad that was built.

Basically, the trade-off is that narrow gauge railroads are
less expensive in first cost, while wider gauge railroads
provide more efficient transportation over the long-run. This
is why some railroads were originally built to a narrow gauge,
and then subsequently converted to "standard" gauge, as the
revenues and profitability grew.

Choosing the gauge is just one of many financial/engineering
trade-offs that have to be made when building a railroad. Choice
of route is another big one. The trade-off decision extends to
such seemingly minor matters as tie material or 4 vs. 6-axle
locomotives.

If anyone is interested in an easy to read exposition of railroad
design and planning, I recommend the book "The Railroad, what it
is and what it does", by John Armstrong. Fine reading for anyone
who is interested in how railroads really work. John explains it
all much better than I can.

Michael Stimac
...hplabs!oliveb!tymix!stimac

rck@ihuxx.UUCP (Kukuk) (02/14/86)

Do any of the net.railroad readers have any experince with
LGB scale ("Gauge 1") live steam locomotives?  I'm interested
in learning about this hobby.  Please reply by mail.

				Thanks,
				Ron Kukuk