Inca Road System

Timeline

1. 1200–1438Cusco · Cusco RegionThe Inca integrated road segments left by earlier polities such as the Wari in the Cusco Valley, building stone-paved roads linking the sacred site with surrounding settlements, laying the transport framework for later imperial expansion.
2. c. 1320–1430Urubamba Valley · Cusco RegionIn the 14th century, the Kingdom of Cusco extended its power into surrounding valleys such as Urubamba; the road network connected more agricultural settlements and salt and mineral sources, and the rudimentary relay station system emerged, supporting tribute collection and military patrols.
3. c. 1438–1533Andean north–south corridor · AndesFrom Pachacuti to Huayna Capac, the empire brought roads in conquered regions under unified standards, established chains of relay stations and suspension bridges, and the trunk road ran from Quito to central Chile, becoming the lifeline of imperial military and administration.