Streets are rated on a scale from 0 to 100 using a "pavement condition index" (PCI). New streets begin at a PCI of 100 and gradually deteriorate over time. Often times "fair" streets can become "good" streets again with routine maintenance, as illustrated by the graph to the right. Eventually maintenance becomes ineffective and reconstruction is in order.
This street segment has had some crack sealing done to prevent water infiltration. Having no other faults, it still qualifies for a good rating.
Although this street exhibits quite a bit of unsealed cracking, it still has an overall fairly smooth ride.
This street segment has a rough ride due to cracking and rutting (difficult to see in the picture). Previous patches are beginning to fail.