@SteveClough @CoolBlenderKitten I'm not sure how you think granite discourages cars? (It makes it more expensive to build level roads, true, but that's insignificant compared to Edinburgh being a UNESCO world heritage site with an old town that's 600-800 years old and a new town that was laid out in the 1750s! The former designed for pedestrians and ox-carts within medieval walls, the latter for horse-drawn carriages. Cars are not a good retrofit …!