What is the name of a sloped surface that connects two or more planes at different levels?

A ramp is defined as a sloped surface that connects two or more planes at different levels, providing a transition from one elevation to another. Ramps are commonly used in various contexts, such as architectural designs for accessibility, allowing individuals to easily move between different floor heights, or in transportation to facilitate vehicles in loading and unloading.

While terms like "incline," "slope," and "pathway" may describe inclined surfaces or pathways, they do not specifically capture the functional aspect of connecting different planes in the way that a ramp does. Ramps are designed with a specific purpose in mind, typically to enable movement without the need for stairs, making them suitable for individuals with disabilities, using wheelchairs, or transporting heavy goods.