Perhaps you might want to use metaphors related to driving?
More general: possible ways to deal with things that block one's way are: to avoid, circumvent, left behind, overcome, step over, remove, move (out of the way), clear the path.
The last one also shows a way to avoid the roadblock in the second sentence. Any metaphor that indicates a free way in the second sentence will be connected.
With circumvent and similar expressions it is better to be careful in scientific writing, as it indicates, the roadblock is still there, we just cheated our way around it.
ps.: I find "roadblock ... achieve ... vision" not very consistent. Perhaps "roadblock ... reach ... what is envisioned" by changing a ideal (vision) to an object (that what is envisioned) it can have a place. That can be reached, unless the way to it is blocked.