Source URL: https://cms.bts.dot.gov/modal-data-seasonally-adjusted-included-freight-transportation-services-index-0
Links
[1] https://cms.bts.dot.gov/modal-data-seasonally-adjusted-included-freight-transportation-services-index-0
[2] https://data.transportation.gov/stories/s/9czv-tjte#transportation-modal-data