1. SP 22.13330.2011 Foundations of buildings and structures. The updated edition of SNiP 2.02.01-83*.
2. GOST 30672-99 Soils. Field tests. General provisions.
3. GOST 20276-2012 Soils. Methods of field determination of strength and strain characteristics.
4. SP 78.13330.2012 Motor roads.
5. GOST 32825-2014 Motor roads of common use. Road toppings. Methods of measurement of the geometrical dimensions of damage.