What generally decides whether a road should be split is physical separation, not the number of lanes. That is, if there is some sort of physical barrier (other than painted lines) between lanes, then it often makes sense to split them in separate lines. ways. If not, it's usually better to keep things simple and make the road a single line.way.

What generally decides whether a road should be split is physical separation, not the number of lanes.lanes. That is, if there is some sort of physical barrier (other than painted lines) between lanes, then it often makes sense to split them in separate lines. If not, it's usually better to keep things simple and make the road a single line.

What generally decides whether a road should be split is physical separation, not the number of lanes.