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Who was allowed to use the Inca road system?
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Inca
Ancient Inca ruins at the foot of the peak of Machu Picchu in south-central Peru.
Use of the Inca road system was strictly limited to government and military business. The network, which spanned thousands of miles across the Andes and the Pacific coast, facilitated the movement of official messages via a relay service using knotted cords known as quipu.12
Traffic on these roads consisted entirely of people on foot and pack animals, specifically llamas, as the Inca did not utilize the wheel.3