Driving back from Khon Kaen via Korat to Bkk on Saturday, we saw the new signage on the 'by-pass' and turned off thinking we could hit the new road to at least further along route 2 from where you would normally join it, but the signage was confusing and the first slip road appeared open, but not sure whether it really was as there was still some building work going on and it didn't appear the road we needed to join(?), the second slip way was blocked off, so we rejoined the 'by-pass' and carried on as normal.