- Updated 28 days ago • Last indexed 1 hour agoHighway Performance Monitoring System (HPMS)
- Updated 28 days ago • Last indexed 1 hour agoHistoric HPMS Data (Sample) - 1980
- Updated 28 days ago • Last indexed 1 hour agoHistoric HPMS Data (Sample) - 1981
- Updated 28 days ago • Last indexed 1 hour agoHistoric HPMS Data (Sample) - 1982
- Updated 28 days ago • Last indexed 1 hour agoHistoric HPMS Data (Sample) - 1983
- Updated 28 days ago • Last indexed 1 hour agoHistoric HPMS Data (Sample) - 1984
- Updated 28 days ago • Last indexed 1 hour agoHistoric HPMS Data (Sample) - 1985
- Updated 28 days ago • Last indexed 1 hour agoHistoric HPMS Data (Sample) - 1986
- Updated 28 days ago • Last indexed 1 hour agoHistoric HPMS Data (Sample) - 1987