CLAIM: Potholes, an effect of frost wedging, are not only caused by physical factors - humans have a large impact on this issue. Potholes are formed by the heating up and cooling down of water that gets in cracks of pavement. When cars (a human factor) create pressure on the top of the pavement, it collapses and makes potholes.
An example of a pothole caused by environment changed and one human factor - traffic.
Physical weathering is the disintegration or disaggregation of rocks by physically breaking them apart. This type of weathering is caused by the changes in an environment, like the increase of pressure, or the heating up and cooling down of rocks. Potholes are an affect of physical weathering because they are made by the heating up and cooling down of water inside the pavement, mixed with pressure from different directions on the rock.