Actually, not too hard to imagine. Roads have been built by private parties for centuries. How else would governments have learned to build them? One you might appreciate here (I did not have a sixth link to put it under "anarchy"): https://steemit.com/policyofliberty/@policyofliberty/averting-civil-war-in-chile-concealed-carry-policy-as-a-means-of-quashing-the-vitriol-of-the-left