Table 1-23:  Condition of U.S. Roadways by Functional System,,,,,,,,,,,
,1990  ,1991  ,1992  ,1993  ,1994  ,1995  ,1996  ,1997  ,1998   ,1999  ,2000  
Rural,,,,,,,,,,,
,,,,,,,,,,,
Interstates,,,,,,,,,,,
  Miles reported,"33,547","33,677","33,027","29,089","31,502","31,254","31,312","31,431","30,498","32,820","32,888"
  Poor (%),8.7,7.6,5.2,7.0,6.5,6.3,3.9,3.6,4.1,2.4,2.1
  Mediocre (%),a,a,14.1,27.7,26.5,20.7,19.1,19.1,16.5,14.0,12.2
  Fair (%),31.9,31.7,17.4,20.9,23.9,22.3,21.7,20.7,17.8,18.1,16.9
  Good (%),a,a,27.6,36.1,33.2,36.9,38.8,41.0,42.6,44.0,44.8
  Very good (%),59.5,60.7,35.6,8.3,9.9,13.9,16.6,15.7,19.0,21.5,23.9
  Unpaved (%),N,N,N,N,N,N,N,N,N,N,N
  Miles not reported,N,N,N,"3,563",955,"1,326","1,508","1,382","2,313",153,162
,,,,,,,,,,,
Other principal arterials,,,,,,,,,,,
  Miles reported,"83,802","85,729","94,798","78,296","89,506","89,265","92,103","92,170","93,333","97,247","97,284"
  Poor (%),3.4,3.6,3.3,2.9,2.4,4.4,1.4,1.6,1.4,0.9,0.8
  Mediocre (%),a,a,5.9,9.2,8.2,7.6,5.8,4.9,4.6,3.7,3.2
  Fair (%),42.6,44.5,34.6,54.8,57.4,51.1,49.1,47.7,43.3,41.5,38.7
  Good (%),a,a,28.5,26.7,26.6,27.9,34.4,R37.2,38.3,40.5,42.9
  Very good (%),53.8,51.9,27.6,6.4,5.4,9.0,9.3,8.6,12.3,13.5,14.4
  Unpaved (%),N,N,N,N,N,N,N,N,N,N,N
  Miles not reported,N,N,N,"17,905","7,489","8,683","6,028","6,083","5,524","1,587","1,625"
,,,,,,,,,,,
Minor arterials,,,,,,,,,,,
  Miles reported,"144,735","142,866","137,637","134,837","124,877","121,443","126,381","126,525","130,591","135,192","136,092"
  Poor (%),4.6,4.3,3.9,3.9,3.5,3.7,2.3,2.3,1.9,1.7,1.7
  Mediocre (%),a,a,7.1,9.1,10.5,9.0,8.2,6.7,6.0,5.2,5.3
  Fair (%),48.2,47.3,36.4,53.5,57.9,54.7,50.7,50.4,47.2,47.3,46.2
  Good (%),a,a,25.3,25.0,23.6,23.9,31.0,33.6,34.3,34.4,35.6
  Very good (%),47.2,48.4,26.8,8.5,4.5,8.7,7.7,7.0,10.6,11.4,11.2
  Unpaved (%),–,–,N,N,N,N,N,N,N,N,N
  Miles not reported,N,N,N,"12,740","13,294","15,708","R10,978","10,978","6,664","1,968","1,227"
,,,,,,,=,,,,
Major collectors,,,,,,,,,,,
  Miles reported,"436,365","436,737","434,175","432,223","431,111","431,712","432,117","386,122","R171,134","163,544","388,485"
  Poor (%),8.9,7.7,7.8,6.8,6.5,6.5,6.7,7.8,R8.8,9.3,8.5
  Mediocre (%),a,a,11.0,12.4,11.3,11.4,10.3,12.3,R13.0,12.1,12.7
  Fair (%),43.8,45.2,32.3,37.7,33.5,30.8,R34.4,37.6,R33.5,33.2,43.7
  Good (%),a,a,17.7,16.3,16.1,17.4,20.0,23.0,R21.3,20.9,22
  Very good (%),36.2,36.1,20.4,15.9,21.9,23.7,18.4,19.3,R23.4,24.5,13.2
  Unpaved (%),11.1,11.0,10.7,10.9,10.7,10.2,10.1,N,N,N,N
  Miles not reportedb,N,N,N,N,N,N,N,"2,402","R217,566",U,U
,,,,,,,,,,,continued
Table 1-23 continued,,,,,,,,,,,
,1990 ,1991 ,1992 ,1993 ,1994 ,1995 ,1996 ,1997 ,1998  ,1999 ,2000 
Urban,,,,,,,,,,,
,,,,,,,,,,,
Interstates,,,,,,,,,,,
  Miles reported,"11,527","11,603","12,466","10,738","12,338","12,307","12,430","12,477","12,231","13,109","13,139"
  Poor (%),8.6,7.7,7.1,10.6,13.0,10.4,8.6,9.0,9.4,7.3,6.5
  Mediocre (%),a,a,13.2,30.9,29.9,26.8,28.3,27.0,25.5,23.1,21.7
  Fair (%),32.2,32.3,17.0,23.6,24.2,23.8,24.7,24.4,21.8,22.6,21.4
  Good (%),a,a,28.0,28.3,26.7,27.5,30.7,32.9,32.0,34.9,37.1
  Very good (%),59.1,60.0,34.7,6.5,6.2,11.4,7.6,6.7,11.4,12.0,13.3
  Unpaved (%),N,N,N,N,N,N,N,N,N,N,N
  Miles not reported,N,N,N,"2,140",788,857,787,771,"1,040",230,226
,,,,,,,,,,,
Other freeways ,,,,,,,,,,,
and expressways,,,,,,,,,,,
  Miles reported,"7,670","7,714","8,465","7,011","7,618","7,804","8,410","8,480","8,772","8,860","8,794"
  Poor (%),2.2,2.3,2.6,3.8,5.3,4.8,3.4,3.3,3.2,2.6,2.8
  Mediocre (%),a,a,5.9,9.4,12.7,9.8,8.7,8.7,8.7,8.0,8.1
  Fair (%),43.9,44.2,32.4,60.6,58.1,54.7,54.7,58.5,54.3,53.6,50.6
  Good (%),a,a,28.1,22.7,20.9,20.4,26.3,25.2,27.1,30.0,31.6
  Very good (%),53.9,53.5,31.0,3.5,2.9,10.3,6.8,4.2,6.6,6.8,6.8
  Unpaved (%),N,N,N,N,N,N,N,N,N,N,N
  Miles not reported,N,N,N,"1,846","1,377","1,166",R617,579,397,281,355
,,,,,,,,,,,
Other principal arterials,,,,,,,,,,,
  Miles reported,"51,987","52,349","52,165","30,337","38,598","41,444","44,498","45,009","44,886","48,045","47,797"
  Poor (%),5.9,6.6,6.8,9.2,12.5,12.4,11.8,12.1,12.9,12.5,13.2
  Mediocre (%),a,a,11.5,13.3,16.3,14.7,14.1,14.6,18.5,18.1,16.8
  Fair (%),49.0,49.1,34.8,55.0,50.8,47.2,48.9,49.5,45.3,45.2,45.1
  Good (%),a,a,21.4,19.3,16.6,15.9,17.5,17.8,17.6,18.8,19.4
  Very good (%),45.1,44.3,25.3,3.3,3.8,9.7,7.7,6.0,5.8,5.4,5.4
  Unpaved (%),N,N,N,N,N,N,N,N,N,N,N
  Miles not reported,N,N,N,"22,498","14,492","11,352","8,485","8,209","8,246","5,154","5,518"
,,,,,,,,,,,
Minor arterials,,,,,,,,,,,
  Miles reported,"74,656","74,979","80,368","86,819","87,852","88,510","89,020","88,484","R45,275","43,481","88,339"
  Poor (%),8.9,7.4,7.9,7.9,6.7,6.7,6.9,7.2,R5.7,5.8,10.0
  Mediocre (%),a,a,14.3,13.8,12.3,13.6,13.0,13.0,12.2,11.7,16.0
  Fair (%),48.5,49.9,34.1,40.2,38.1,36.9,37.9,37.9,R36.0,35.3,39.8
  Good (%),a,a,19.2,18.4,20.5,20.4,20.7,21.4,R22.1,20.5,16.9
  Very good (%),42.1,42.1,24.0,19.4,22.1,22.1,21.1,20.6,R24.0,26.8,17.3
  Unpaved (%),0.5,0.6,0.5,0.4,0.3,0.3,0.4,N,N,N,N
  Miles not reportedb,N,N,N,N,N,N,N,374,"R43,435",U,U
,,,,,,,,,,,
Collectors,,,,,,,,,,,
  Miles reported,"78,248","77,097","82,657","84,856","86,098","87,331","87,790","86,666","R53,806","52,002","86,026"
  Poor (%),16.5,11.2,10.5,10.6,9.8,9.7,9.7,10.6,R8.1,9.0,14.7
  Mediocre (%),a,a,16.9,16.8,16.2,16.8,16.6,16.0,R12.8,13.0,17.4
  Fair (%),50.4,53.5,35.2,40.0,40.0,39.0,39.2,39.0,R39.4,37.4,35.7
  Good (%),a,a,17.3,16.1,17.0,17.2,18.2,18.4,R18.8,17.2,14.2
  Very good (%),31.7,34.2,19.1,15.5,16.0,16.6,15.4,15.9,R20.9,23.4,18
  Unpaved (%),1.3,1.1,1.1,1.0,0.9,0.8,0.9,N,N,N,N
  Miles not reportedb,N,N,N,N,N,N,N,663,"R32,921",U,U
KEY: N = data do not exist; R = revised;  U = data are not available; – = value too small to report.,,,,,,,,,,,
,,,,,,,,,,,
a  Included in row below.,,,,,,,,,,,
"b  The significant increase in miles not reported can be attributed to the fact that many states are electing to report pavement conditions by the more objective International Roughness Indicator (IRI) rather than by the Present Serviceability Rating (PSR), which has traditionally been used to determine pavement conditions for these systems.",,,,,,,,,,,
,,,,,,,,,,,
"NOTES:  Because of the transition to a new indicator for pavement condition beginning with U.S. Department of Transportation, Federal Highway Administration (FHWA) data published in 1993, comparisons between pre-1993 data and 1993 and later data are difficult. Thus, trend comparisons should be made with care. For additional information, the reader is referred to the accuracy profile for this table in the appendix. Total mileage in this table will not match that in table 1-4 because of a change in the method of creating mileage-based tables derived from the Highway Performance Monitoring System, beginning with the 1997 issue of FHWA's Highway Statistics. ",,,,,,,,,,,
Data are for the 50 states and the District of Columbia.,,,,,,,,,,,
Percents may not add to totals due to rounding.,,,,,,,,,,,
,,,,,,,,,,,
"SOURCES:  1990-92:  U.S. Department of Transportation, Federal Highway Administration, Highway Statistics (Washington, DC: Annual issues), table HM-63.",,,,,,,,,,,
"1993-98, 2000: Ibid., Highway Statistics (Washington, DC: Annual issues), table HM-63 for rural major collector, urban minor arterial, and urban collector, and table HM-64 for all other categories.",,,,,,,,,,,
"1999: Ibid., personal communication, June 5, 2002.",,,,,,,,,,,
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