This course provides an overview to students: This course provides an overview to students: History of the development of railroads in Indonesia and pavement construction, definition of track, function of railroads, how to know the classification of roads based on travel speed, passing tones and axle loads, types rails, dimensions of railroad bodies, cross-sections of railroad tracks, introducing students to railroad planning, including: Distribution of loads on railroad tracks, subsoil layers, sand caps, ballast, types of rails, forces at work on railroads (centrifugal force, train overturning force), railroad track geometry (horizontal and vertical alignment), bottom and top construction planning, emplacement, crossings and types of wedges.