John McAdam

John McAdam was a Scottish engineer and inventor, best known for developing a method of road construction that revolutionized transportation in the early 19th century. He introduced the idea of using crushed stones layered in a specific way to create a durable, effective road surface, which became known as "macadam." This innovation significantly improved road quality and allowed for better drainage, making travel safer and more efficient. McAdam's techniques laid the groundwork for modern road-building practices and contributed to the expansion of infrastructure during the Industrial Revolution. His work remains influential in civil engineering today.