Poor: Large open cracks, surface and edge spalling, vegetation growing through cracks and joints; or widespread, severe cracking with raveling and deterioration.
Fair: Mild surface cracking, unsealed joints, and slab edge spalling.
Good: No visible deterioration, or all cracks and joints are sealed.
National Plan of Integrated Airport Systems (NPIAS) airports include commercial service airports, reliever airports, and selected general aviation airports.
As cited in U.S. Department of Transportation, Bureau of Transportation Statistics, National Transportation Statistics, table 1-25, available at https://www.bts.gov/.
Last Updated: October 2017