[Tagging] sidewalks

[SomeoneElse]

  On 28/08/2010 10:51, M∡rtin Koppenhoefer wrote:
> You can actually see informal footways/paths quite well in aerial
> imagery. If they are there and you have good resolution images.
> Usually the grass is aside then, because grass doesn't grow where
> people (or animals) walk. It disappears even if it was there before.
Your eyesight must be better than mine - often where I walk paths are 
marked by a footpath sign or just a stone squeezer stile at either side 
of a field.  Any marks left by walkers would get obliterated by cows 
going back and forth twice a day.