Wilfried, you seem to be asking what we think about a longer section of your route on US 9W. I have never been there and I have never rode my bike there. But looking at Google StreetView (and that's all I have to base my opinion on) I would never, ever ride on that highway. It looks like one would have to expect speeds in excess of 60 mph, which would be suicidal in my opinion. Sorry to be so blunt, but I really don't think this would be safe at all.