What is the purpose of slope stabilization measures?

The primary purpose of slope stabilization measures is to prevent soil erosion and landslides along roadway embankments. When roads are built on or adjacent to slopes, the integrity of the slope is crucial to maintaining safety and functionality. Stabilization techniques, such as installing retaining walls, using vegetation to hold soil in place, or employing engineered systems like soil nails or anchor cables, help to secure the soil and prevent it from being displaced or washed away by rainwater or erosion.

Soil erosion can lead to significant issues for transportation infrastructure, including damage to the roadway surface and unsafe driving conditions. Additionally, landslides can pose immediate dangers to vehicles and pedestrians, undermining the road’s stability. Therefore, effective slope stabilization is essential for ensuring the ongoing safety and reliability of the highway system, protecting not only the roadway but also the lives of those who use it.

The other options, such as creating more road lanes or focusing on landscaping aesthetics, do not directly address the critical need for maintaining slope stability in the context of highway construction and safety. Enhancing drainage efficiency may be a secondary benefit of some stabilization techniques but is not the main goal.