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The Roman Empire is known for its construction of roads that stretched throughout the Empire. These roads nurtured trade through the Empire and connected with other trade routes as far as the [[Silk Road]] to [[China]]. In addition to trade, the highways allowed for fast overland movement of military forces to areas that needed defense or suppression. This same spirit of military infrastructure has a modern descendant in the [[Eisenhower Interstate System]]. The Roman style of road construction was revolutionary at it's time, and has for the most part yet to be improved upon. Crowns allowed runoff of rainwater into gutters and sub-packing of peastone and gravel allowed for absorption of frost heaves where necessary. While not all Roman roads were built this way, this was nevertheless a milestone in road construction. Surveying methods of the time forced the Romans to build these roads arrow straight. During the reign of [[Diocletian]] 372 main roads were recorded, totaling 53,000 miles<ref>Leslie and Roy Adkins, ''Life in Ancient Rome'' ISBN 0-19-512332-8</ref>. Many of the routes the roads followed are still in use today.

Aqueducts were built to supply water to cities by finding an aquifer or reservoir and channeling it along the route of the aqueduct with a slight reduction in grade to provide water pressure. Once the aqueduct arrived at destination city, lead pipes directed the flow of water to fountains and even the wealthier homes. Sewers were provided, as were large public latrinesand often extravagant public and private baths. These baths, known as '''thermae''' usually provided separate rooms for cold '''(frigidarium)''', warm '''(tepidarium)''', and hot '''(caldarium)''' bathing. Water and floors were heated using a hypocaust heating system; an under floor furnace. Tending these furnaces was a dangerous job, done by slaves. As bath complexes grew larger, they began to include saunas and gyms, along with other health and hygiene related buildings and areas. Roman baths were not merely salubrious, however. They also were an important social gathering point along with [[forum]]s and [[curiae]].