In geotechnical surveys of roads what is L section and cross section?

Question

In geotechnical surveys of roads what is L section and cross section?

Answer 1

cross section shows the thickness of the road and its materials and base courses, plus the amount it is crowned across the roads width. Educated guess here, but L section probably stands for longitudinal section and shows the thickness of the road along its length, showing the slope. In piping or sewer projects we would call this the profile.