1 in x versus %

["David Martin" <d_martin@mountains.net.au>]

Anyone know the conversion formula?
David Martin
Blue Mountains Railway Pages
http://www.mountains.net.au/plaza/rail/


James Robinson wrote in message <36688076.5651@ERIE.NET>...
>David Bennetts wrote:
>
>> The line at Roaring Camp ... is about 1 in 12 (of course the
>> yanks use a % grade, just to be different.
>
>Interesting that you should bring this up, as Australia seems to be in
>the minority with this one.  I believe most of the rest of the world
>uses percent to describe gradients, which is eminently more intuitive
>than the "1 in" system.  There are a few countries that seem to have
>clinged to the British method, mostly those whose railroads began under
>British influence.  (Though wasn't everybody's?) With the conversion to
>Metric, I would have thought that the description of gradients would
>have changed as well.  Seems to be an anomaly.  Any comments?