I live on Soi 3 of Arunotai it is one of the most dangerous roads in Pattaya more so at school times, vehicles/bikes ignore the signs and the school staff directing exiting vehicles/bikes from the gates.
It’s even more dangerous for pedestrians with bikes undertaking where pedestrians where are walking.
The most congested part is near the old Family Mart, vehicles/bikes come from Klang and use the side road as a rat run to 3rd Road. Yellow boxes are ignored, I don’t think most drivers know what they actually mean.