Samenvatting
Roads are as old as human kind, and they will probably continue to be the key form of transportation as long as there are people to use them. In spite of their longstanding existence and continuous importance, roads have changed substantially in their materials and their function, and this evolutionary process will accelerate in the future. This evolutionary process will affect future construction of highways. This paper briefly outlines the innovations of the last two centuries, and how these have shaped the modern highway.