Landscape and Monuments
Mike Parker Pearson, Joshua Pollard, Colin Richards, Julian Thomas, Chris Tilley & Kate Welham | 2020
Within this book there is a discussion and diagrams of the Cart Tracks or Wheel-Ruts that were discovered within the Avenue at Stonehenge and that overlie the periglacial grooves.
Cart tracks should, I think, come in pairs which are the right width apart, and at first sight the figure doesn't show this:
It appears they follow the lines of the fissures rather than being independent features. I can only presume the fissures are softer ground and so rut more.
The oft repeated myth that railway lines are the same width apart as carts and chariots wheels does have a bit of truth to it. The width of cart tracks will be between 1.2 and 2 metres with the usual width about 1.4 - 1.5m.
So do these features have these properties. On closer examination it seems that they do as I have tried to show with paired parallel lines. It isn't as clear as might be hoped for and some crushed stone in the bottom of the ruts would have been helpful.