Đồng Nai has made significant progress in upgrading its transport infrastructure, especially roads. National highways in the province have a total length of 244.5 km and have been improved and widened up to level 1 and 2 standards (National Highway No. 5 and 6) or up to third grade like National Highway No. 20 to Đà Lạt. The total roads system in the province is 3,339 kilometers long, of which almost 700 kilometers are tar roads. All communes and wards are connected to the road network.