§ 3.1.2. GENERAL PAVEMENT DESIGN REQUIREMENTS

1.

Flexible pavements must be designed for crack resistance for both environmental (subgrade shrink/swell) and fatigue (surface thickness) modes. Although the fatigue requirement will most likely result in thicker surface layers, thinner allowable base layers will partially compensate for and offset some of the cost of the increased surface thickness. This concept has been referred to as a "balanced" design. Using MFPS alone does not ensure a "balanced" design.

2.

Excessively thick base layers do not effectively compensate for subgrade soils with high swell potential. It is recommended that the designer consider one or more of the stabilization strategies listed in Section 3.1.3.

3.

Rigid pavement designs must include proper jointing plans, joint types, and either non-erodible bases or a non-erodible prepared subgrades.

Source: Rule No. R161-14.04, 4-4-2014 .