... on graphic representations of a Rough Patch.

Here are three ways of looking at this rough patch business. Arrows indicate direction of travel.
In all cases it is advisable to wear a stout pair of boots to combat stubbed toes, twisted ankles and burning feet. In the case of the third, the use of a gas mask will help protect against further perils associated with the rough patch, and once the patch is safely traversed normal travel can continue.