Britannica Sources used in this answer

Where are inclined planes used in ramps and roads?

Created from Britannica articles using AI. AI can make mistakes, so verify using Britannica articles.

An inclined plane is a simple machine consisting of a sloping surface that allows heavy objects to be raised with less force than would be required to lift them vertically.1

In the context of transportation and infrastructure, this principle is applied in several ways:

  • Roads and Terrain: Inclined planes are fundamental to road design, where slopes are engineered to allow vehicles to ascend elevations that would otherwise be impassable. By increasing the distance of the path, the force required to move a load is reduced.1
  • Waterway Engineering: Historically and in modern engineering, inclined planes have been used to transport boats between different water levels. Instead of using a series of locks, vessels are placed on trucks or in caissons and moved along a slope using gravity, animal power, or mechanical systems. Notable examples include the systems at Saint-Louis-Arzviller, France, and the Krasnoyarsk dam in Russia, which allow ships to bypass significant height differences.2

Would you like to know more about how the angle of these slopes affects the force required?