Before 40 years the roads were just sand, but after discovering oil the roads it became better and it became easy for people to trans from place to other. Now I’m going to write how roads are built.
First step is count the number of vehicles using existing roads in area. Second step choose a plan of the rout of is new road. After that you must submit of plans for approval to relevant authorities. Fourth you should clear rout like houses, trees, shrubs with bulldozer. Next you must flatten a ground. Fifth step is put down thick layers of concrete. Then you should completing top surface of road and add lane markers, road signs and traffic sin gals to help drivers at night. The last step is check the road for defects before opening the road.
Finally , in my opinion the roads is very important for people and for continuation of development of country and you must follow these steps to build a road safely.