From 1990, the UK and the US created asphalt highways.
They had a lot of advantages.
They could make more money by using asphalt instead of concrete, which had been a costly process in the past.
But the main advantage of asphalt was that it would be lighter than concrete, and they were able to build a lot faster.
They also could build much more infrastructure on the roads.
That infrastructure, the asphalt, was what made roads so attractive.
But it was also the first time in human history that asphalt was being used for roads.
The new roads would have been built on asphalt instead, and the result would have a massive effect on the world.
What was the first asphalt highway?
It was called the “Asphalt Urban GT” (a nickname for the UK).
It was built in the UK by Transport for London and was supposed to be the first major urban highway.
The first concrete highway, built in Australia, was built on dirt.
It didn’t work out.
What’s the story of the “asphalt” roadways?
Asphalt was a type of asphalt that had been used for road construction for years, but it had been so heavily polluted that the soil and water could not hold the pollutants, and it was so hard to transport it that it had to be used as an “unmanned vehicle”.
The first asphalt road was called “The Great Western Highway”, which ran from London to Edinburgh in England and was named after the city in Scotland.
Asphalt roads were the first roadways to be constructed in Europe.
They were built on a mixture of concrete and clay, with roads built over a shallow area that was not a natural drainage ditch.
The concrete was made from coal.
The clay was a mixture that could be dug up and crushed with a hammer.
It was also very porous, which meant that it was easy for the road to crack.
The asphalt roadways were not built by roads.
They took a lot more energy to build than the concrete roads, so it took a long time to build.
But by the time the first roads were built, the soil was saturated with the pollutants.
And so the roads had been built with dirt as a “bridge” between the dirt and the concrete, as it was the easiest way to carry the pollutants on to the next layer.
The soil was filled with coal, so the road was built with a slurry of coal and clay.
The slurry was not just coal, it was iron oxide and lime, which was the same kind of iron oxide that the city of Glasgow used to make iron bricks.
The city of London was not built on the same soil.
It had been excavated and it had a long, thin layer of soil that was a mix of gravel and clay that was laid down as a layer.
That layer was then laid down on top of the coal and cement layers that were laid down before it.
The road was so deep that there were no tunnels for the coal to be carried on.
So the roadbed was made of cement, which would be laid down like the coal layer.
It would be dug and crushed and then the soil would be dredged out of the top of that layer.
When it was excavated, the earth would be pushed out and then filled with gravel.
That was where the clay was deposited.
It’s still a bit of a mystery what happened to the clay.
We have a bit more information on this in the book The Asphalt Urban Highway.
What happened to “Asphalts”?
Asphalt became the dominant type of road in the world by the late 1980s.
There was a time when it was still considered dirtier than concrete.
That changed in 1991, when the World Health Organization (WHO) approved a protocol that the WHO was calling “the world’s first systematic evaluation of the environmental impacts of asphalt road surfaces”.
The WHO was looking at a variety of pollutants and found that “the environmental impacts were similar to those of a diesel-powered vehicle”.
So it was no longer dirtier, and as the technology advanced, more and more asphalt was built.
The same technology that made roads dirtier also made them more efficient.
The roads in the US and UK were being built on solid rock.
The rock itself was fine, but the rock below it was hard and the rock above it was porous.
As the rock was being built, some of the rock around the concrete layers would crack.
When the concrete came down and the crack came out, the crack would travel through the cracks, so cracks would form on the rock underneath the concrete.
As soon as the crack is out of that rock, the rock is ready for asphalt.
The cracking of the rocks around the road also caused problems with the road bed, as the rock beneath the concrete would crack if it was not dug out.
So as the road and the road surface became harder, the road would start to get cracked.