California Air Resources Board 2004 Almanac (web) Trinity County Appendix D North Coast Air Basin Population and VMT Table D-33 Parameter 1980 1985 1990 1995 2000 2005 2010 Population 12000 12800 13000 13500 13000 13800 14400 Avg. Daily VMT/1000 249 272 370 357 354 393 459