Department of Highways
2/486, Si Ayutthaya Road, Thung Phayathai,
Ratchathewi, Bangkok 10400, Thailand
+66 2354 - 6668 Ext. 25503
+66 2354 - 6743
2/486, Si Ayutthaya Road, Thung Phayathai,
Ratchathewi, Bangkok 10400, Thailand
+66 2354 - 6668 Ext. 25503
+66 2354 - 6743