Regulatory signs, Warning signs and Highway or Guide signs Standard signs accepted by Department of Rural Roads
Regulatory signs Department of Rural Roads standard
Regulatory sign specifications
Size of standard signs are Ø 60, Ø 75 and Ø 90 cm.
Warning signs and Construction signs Department of Rural Roads standard
Standard sizes of the warning signs 2-1 to 2-60/1, 2-62 and 2-75 are 60 x 60, 75 x 75 and 90 x 90 centimeter.
Supplementary warning sign
Additional signs are used together with warning signs to elaborate meaning, limit and length of the way ahead.
Standard sizes of the Construction signs 2.1-1 to 2.1-24 are 60 x 60, 75 x 75 and 90 x 90 centimeter.
2.1-25 and 2.1-26
60 x 120 cm.
Highway or Guide signs Department of Rural Roads standard
Standard sizes of the Directional arrow signs number 3.1-1 to 3.1-14 are 40 x 60, 50 x 75 และ 60 x 90 cm.
Tourist Attractions road sign
Green tourist signs: Natural
Brown tourist signs: Archaeological site
Blue tourist signs: Activities
The standard size of tourist signs is 40 x 40 cm.
Traffic signs Department of Rural Roads standards