There are many threads on this subject. Here is the NCDOT site dedicated to RT 540 progress.
NCDOT: I-540 Raleigh Outer Loop
North East Raleigh is a large area and many roads lead toward RTP. It would help if you could narrow it down a bit more to fully answer your question.
RTP employs a lot of people in the area that live all over the area so many do track from NE Raleigh to RTP. Also, 9am is a popular starting time so roads will be busy. 5PM is a popular time for workers to return back to NE Raleigh and other points so roads will be busy in the opposite directions of the 9AM commutes.