Daegaya dispatched envoys to China, actively exchanged the products of civilization with Baekjae and Japan, and governed wide territories in its golden age. In this respect, it seems that Daegaya had the roads to each territory and used the waterways on the rivers and seas.
The traffic routes of Daegaya consisted of the routes to Geochang, Hamyang, Namwon, Seomjin River, Hadong, Namhae, Japan, and China and the main routes were the routes to Hoechun, River Nakdong, Gimhae, and Japan. Also, the routes to Namwon, Eimsil, Jeongeup, and Buan (Jugmagdong) were used. They sent iron, grains, and earthenware using the cow or horse wagons and ships and received sea fishes, shells, and salt through such routes.