I noticed work on Sukhumvit North of town the other day, likely this mess. I am gobsmacked.... An alternative route is only possible on the Railway Line Bypass, which, yes you guessed it, is being dug up on the Southbound side, and has been for over a year for some damned drainage project. It is a coin flip whether you can get through or will be diverted off into the backroads all around the houses. These folks are idiots!