Military Road System: How Developement Has Changed

Throughout history pavement has been changed to help society better use roads. Originally, the Romans had used a military road system to help defeat their enemies. These military road systems weren’t efficient to build, they required lots of physical labor and cost roughly $2,000,000 per km. In the 1800’s, Telford came up with the idea to create relatively flat roads in three layers to reduce the amount of horses needed to haul objects. The top two layers consisted of stones and the lowest layer consisted of large stones, Telford’s unique design. Around the same time, Macadam began using angular aggregate and slopped subgrade to improve drainage on the roads. Macadam’s model for pavement became so common that by 1850 over 2,200 km of macadam