History of Technology in India, Vol. I: From Antiquity to c. 1200 A.D. v1.c29.s1.t3.13

v1.c29.s1.t3.13

Kautilya describes many kinds of roads classifying them according to their use and destination. Each road had a specified width varying from 4 feet for pedestrians and 32 feet to 64 feet for royal roads and trade routes. Roads were made with a convex surface (like the back of the tortoise) and were provided with drains on either side, water flowed down through these drains.