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What are roads made from?

Updated: 9/14/2023
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13y ago

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asphalt

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Q: What are roads made from?
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What are modern roads made of?

Normally tarmac


Roads are made up of what?

sand gravel, asphalt, pavement, concrete, and rebar


Who made a road bed of large crushed stone with a smooth layer of crushed stone?

The Romans made their roads using layers of different sized rocks. Their roads were very strong and durable. Some still exist today.


What are the differences between the four major types of roads?

The difference between the four roads are; the expressway is designed to carry huge amounts of traffic quickly over long distances. Arterial roads carry moderate amounts of traffic over shorter distances. Collector roads move traffic from local roads to areterial roads. Local roads that are smaller and narrower than arterial roads.


What steps did the Romans take to make their roads long lasting?

The Romans built stone-paved roads which were covered with local rocks cut into squares or polygonal slabs of lava. These roads had a military purpose. They made the movement of soldiers and the delivery of supplies to troops at the front or stationed in garrisons much easier and faster. Their military nature was also shown in by the fact that they were usually built on a straight line, even when they crossed hilly areas. Traders also used these roads to transport their goods. They complained that the straight tracts over steep gradients made it very difficult for their laden wagons. After these complaints at least some of these tracts were redesigned to allow for less steep gradients. The paved roads covered 20% (80,500 kilometres, 50,313 miles) of the total network of roads (400,000 kilometres, 250,000 miles) in the Roman Empire.