Department of Rural Roads

Department of Rural Roads is a department of the Thai government, under the Ministry of Transport. It maintains rural roads, under a different numbering scheme from national roads, which are managed by the Department of Highways.

Definition

The 1992 Highway Act, revised as the 2006 Highway Act, defines five highway types.
A rural highway or rural road is a highway which the Department of Rural Roads constructs and maintains. Registration of rural highways is overseen by the director general of the DRR.

Road numbering

Rural road signs are gold-on-blue, with a two-letter provincial designation prefixed to the road number. Depicted is YS4011, a rural road in Yasothon Province. The rural road network measures some 35,000 km, about 82% of which is paved.