In message , Chris Wilson writes
Just started coming across the above terms on old station plans. Anybody
>able to give me an idea what they are ... "mileage siding" and "mileage
>yard" ... I'm guess that it's something to do with trip workings and the
>like but have got to confess I'm stuck.
>
>TIA
>
Where traders unloaded their own goods, avoiding handling costs. They only paid for transport, otherwise known as mileage.