Road pavement section detail drawing with layer thickness dimensions

The construction detail of a road pavement structure used in transportation and infrastructure projects. The drawing includes sectional views showing pavement layer composition, base course arrangement, and surface layer construction used for road durability and load distribution. It illustrates different pavement layers, including subgrade, sub-base, base course, and top surface layer, with thickness measurements and structural alignment. Dimension annotations help explain the depth of each pavement layer and the structural relationship between layers required for proper road performance.