TM 5-826-6/AFR 93-5
Figure 4-2. Illustration of division of a jointed rigid pavement feature into sample units of 20 slabs.
Figure 4-3. Example division of flexible pavement feature into sample units.
e. Each sample unit should be identified adequately so that it can be relocated for additional inspections in order to
be able to verify distress data, or for comparison with future inspections. If significant PCI variation exists within the
sample units in a feature and/or large variation in distress types among sample units, a feature should be further
subdivided into two or more features to facilitate future inspections or for maintenance purposes.