Utility pavement markings

Utility marks from Melbourne pavements - a genre most of you will be familiar with from your own cities. The codes vary from country to country, and there is a great article by Kurt Kohlstedt in which he unpicks the semiotics of these particular surfaces (he also wrote a bestselling book, The 99% invisible city, which I haven't seen yet).

These also remind me of a paper by Joe Hermer and Alan Hunt, published in 1996 in the Law & Society Review, called "Official graffiti of the everyday".

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