First of all, you have to read the drawing clearly: this drawing is a longitudinal section of the road, which only explains the 25CM concrete surface layer, 18CM water-stable layer and 20CM gravel base layer of this section; It also includes hidden water-stable layer and base structure. That's all. /that's all/that's all

Second, in your question, the area of the cushion is very vague, including the water-stable layer and the base. Generally, these two items need to be listed separately.

Third, you need to attach the floor plan (at least the width and total area of the road) and your budget (otherwise I don't know what the list is)

Four, pavement engineering quantity can be calculated according to the layout (length x width); When the water-stable layer is calculated according to the surface layout (length *