Why don't workers who repair roads don't let plants grow on the sides of the roads cutting?

Workers who repair roads typically prevent plants from growing on the sides of the road to maintain safety and visibility for drivers. Vegetation can obstruct sightlines, making it difficult for drivers to see pedestrians, signs, or other vehicles. Additionally, plants can undermine road stability and contribute to erosion, which may lead to further maintenance issues. Keeping the area clear helps ensure proper drainage and reduces the risk of accidents.