Roman roads connected the remote corners of Europe to the heart of the Empire, the city of Rome. Road systems enabled not only the military, but also ideas, goods, and people to travel throughout Europe at a speed never experienced before.
How to Build a Model of a Roman Road - Weird Unsocialized Homeschoolers
The Roman army built the roads by layering sand, cement and stone. They created durable roads that lasted long after the fall of Rome.
Roman roads in Britain--website has fascinating old maps showing everything from How British the Britons Feel to Commuter Maps.