TM 5-826-6/AFR 93-5
OUTLINE OF BASIC CONDITION RATING PROCEDURE
3-1. Condition survey and PCI rating. The steps for performing the condition survey and determining the PCI rating are
described below and in figure 3-1.
Figure 3-1. Steps for determining PCI of a pavement feature.
a. Station or mark off the pavements in 100-foot increments. This is done semipermanently to assure ease of proper
positioning for the condition survey. The overall airfield pavements must first be divided into features based on the
pavement's design, construction history, and traffic area. Therefore, a designated pavement feature has consistent
structural thickness and materials, was constructed at the same time, and is subject to approximately the same traffic
conditions. After initially designating the features on the airfield, a preliminary survey should be made. This survey will
entail a brief but complete visual survey of all the airfield pavements. By observing distress in an individual feature, it may
be determined whether there are varying degrees of distress in different areas. In such cases, the feature should be
subdivided into two or more features.
b. The pavement feature is divided into sample units. A sample unit for jointed rigid pavement is approximately 20
slabs; a sample unit for flexible pavement is an area of approximately 5,000 square feet.
c. The sample units are inspected, and distress types and their severity levels and densities are recorded. Appendix
A provides a comprehensive guide for identification of the different distress types and their