So true. I used to live on the other side of the overpass, and it was a welcomed addition. The intersection below is one of the deadliest in Udon, and the overpass a nice stress and time saver. It is used quite heavily during rush hour, and the congestion below would be 10 times if the overpass wasn't available.It would work if people used the overpass instead of the road below. I see lots of cars just following the road without turning left before the overpass ends.
Nong Khai rd next, and it will probably be the same corruption ridden, delayed project. But very welcomed when completed.
2nd ring rd is an excellent idea, and will actually function as a by-pass, if not obsolete by the time it's done. The ever expanding city is amazing.
On the 'how close to Phen' question, the 'proposed' 2nd ring rd will be above the lakes, but just below the 2021 / Nk rd intersection. Less than 10 kms off the present ring rd. Hope that helps