Identifying and Mapping the Risk of Rockfall and Landslide on Roads and Urban Areas

Various terms are used to refer to slope instability in the range of disciplines involved in the study of mass movement. Ayala (Landslides or ground movements? Definition, classifications and terminology. Investigaciones Geograficas, UNAM. Boletin del Instituto de Geografia, Mexico, 2000) points out that hillside processes are referred to as gravitational processes, mass movement or, in a general sense, landslides. These terms indicate that a slope is unstable and that some form of clearance process may occur.