
The Department of Highways has finished upgrading a section of Highway 4 between Chumphon and Ranong in a bid to improve road safety in the area and promote the development of Thailand's western coast.
According to a department source, its Bureau of Highway Construction 1 improved a 17.75-km section of Highway 4 at a cost of about 847 million baht. The work saw the section upgraded to a dual carriageway with four lanes.