It doesn't seem like the dual carriageway is completely open yet based off the linked info and roadrunner. The road previously tagged as "construction" now follows the roadrunner traces, whereas the old roadway now seems to be closed. I aligned the open section to roadrunner traces and retagged the old section as construction + realigned intersections. Either way we will need to come back to this when clearer sources are found. changeset 136577353