
Macadam road
A Macadam road is a type of paved road built using small, crushed stones layered and compacted to create a stable surface. Developed by John Loudon McAdam in the early 19th century, this method involves spreading and rolling layers of broken stone, often topped with a gravel or asphalt coating to improve durability and smoothness. Macadam roads were innovative for their time, offering better weather resistance and easier maintenance compared to dirt paths, forming the basis for many modern road surfaces before the widespread use of asphalt and concrete.