Construction workers often cut benches or terraces,such as those seen in the image below,along the sides of roads to help mitigate landslides.Why is this?

Question

Quizplus · Accepted Answer

Cutting benches or terraces along the sides of roads can help mitigate landslides by reducing the weight of the hillside, which reduces the force on the slope and increases its stability. It also helps to catch and divert surface water away from the hillside, reducing erosion and further increasing stability. These terraces are often reinforced with retaining walls to provide additional support to the hillside. Option A is incorrect because although benches or terraces provide flat areas, they are not necessarily meant for planting large trees and shrubs. Option C is incorrect because the distance between the road and the slope does not affect slope stability. Similarly, option D is incorrect because building houses on terraces can actually increase the weight of the hillside and make it more prone to failure.

Construction Workers Often Cut Benches or Terraces,such as Those Seen