Troy
Your hearing the tires squeal when turning, if so then it is the surface of the road as they have been using rubber mixed with tar on the road surface.
They have been using the rubber & tar mix for 10 years in Ratchaburi.
More than 7,000 tonnes of rubber latex worth 358.6 million baht have been used for road construction and repair projects under the Department of Rural Roads this year.Department chief Pisak Jitviriyavasin said on Tuesday that findings of research conducted by the department showed that a 5% concentration of latex rubber in the asphalt mixture for road construction and repair projects was most suitable. Since 2013, the department has used a total of 22,659 tonnes of raw latex, worth 1,132.96 million baht, for its road construction projects, Thai media reported.