Аll roads lead to Rome.

Why do all roads lead to Rome?
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The Romans built roads primarily for strategic purposes, so that they could move troops quickly. The first paved road ran from Rome to Capua. It was built under the supervision of the censor Appius Claudius Caecus in 312 BC. The length of the road, which was called Appian, was almost two hundred kilometers. The Roman historian Diodorus Siculus noted that almost the entire Roman Treasury of that time went to the processed stones for this tract. In the future, roads to Rome were also very expensive.
To control spending on their construction, traditionally the construction of each road was supervised by a censor. The roads were built as straight as possible. All places of turns were marked in advance, and bridges were built at intersections with rivers. Road planning was a serious matter, and a thorough geodetic survey was carried out before each section was built. Special tools were used for this purpose.
For example, "groma", the predecessor of the goniometer, was a crosspiece with weights tied at the ends on threads. The slope was measured using a "horobat", a ruler about 6 meters long with a groove into which water was poured. The direction was determined by a "diopter" - a triangle with a plumb line.