Currently, the speed limit on motorways is 90 km/h and 80 km/h on expressways. Ekkarat said the panel suggested the speed limit should be increased to about 100 km/h to 110 km/h. Ekkarat said the speed limits on motorways and expressways has been enforced based on the law enacted in 1979. The law states that the speed limit in Bangkok and municipality areas is 80 km/h and outside Bangkok and municipality areas is 90 km/h. Since motorways are outside Bangkok and municipality areas, the speed limit is limited at 90 km/h and since expressways are in Bangkok, the speed limit is set at 80 km/h, Ekkarat explained.

Source: The Nation Bangkok December 20, 2018 02:26 UTC