WORLD HISTORY

Detailed explanation-1: -The ancient Roman roads were primarily built by the legionnaires themselves. Engineers were regular members of the ancient Roman army, and their knowledge of road, fort, aqueduct and bridge construction was invaluable.

Detailed explanation-2: -Roman road system, outstanding transportation network of the ancient Mediterranean world, extending from Britain to the Tigris-Euphrates river system and from the Danube River to Spain and northern Africa. In all, the Romans built 50, 000 miles (80, 000 km) of hard-surfaced highway, primarily for military reasons.

Detailed explanation-3: -The Romans needed straight, wide, solid roads to transport troops and goods. The roads they built were made from aggregates – lots of different sized stones that compacted down to create a strong, stable and long-lasting surface.

Detailed explanation-4: -Trajan celebrated the success and wealth of Rome by commissioning a large number of building projects, most of them executed by Apollodorus. While Apollodorus of Damascus built structures and monuments across the Roman Empire, there are two in Rome that really defined his career.

Detailed explanation-5: -Most Roman roads were built using earth, a layer of rough gravel and crushed bricks, and a top layer of finer gravel. The most prestigious roads had a top surface of dressed stone blocks, cobbles or slabs of volcanic tuff, limestone, or basalt.