- Updated 3 years ago • Last indexed 21 hours agoHighway Performance Monitoring System (HPMS)
- Updated almost 2 years ago • Last indexed 21 hours agoHistoric HPMS Data (Sample) - 1980
- Updated almost 2 years ago • Last indexed 21 hours agoHistoric HPMS Data (Sample) - 1981
- Updated almost 2 years ago • Last indexed 21 hours agoHistoric HPMS Data (Sample) - 1982
- Updated almost 2 years ago • Last indexed 21 hours agoHistoric HPMS Data (Sample) - 1983
- Updated almost 2 years ago • Last indexed 21 hours agoHistoric HPMS Data (Sample) - 1984
- Updated almost 2 years ago • Last indexed 21 hours agoHistoric HPMS Data (Sample) - 1985
- Updated almost 2 years ago • Last indexed 21 hours agoHistoric HPMS Data (Sample) - 1986
- Updated almost 2 years ago • Last indexed 21 hours agoHistoric HPMS Data (Sample) - 1987