I've learned over the years that you can go a long way by ignoring Road Ahead Closed signs. Of course, one time in ten you have to go an even longer way when it turns out that the road ahead is actually closed. I risked this one, and saw no closed road nor any further signs. Well, I did see a sign saying New Road Layout Ahead (which there wasn't).
I'm sure there's a homily in here somewhere about how ignoring perceived barriers in everyday life can get you further than would be the case if you meekly observed them. However, as it could also lead to a prison sentence, it's probably not the best advice.