Mileage and Travel (DVMT) on State Highway System

FDOT reports on State Highway System Mileage have traditionally been issued as of June 30 and December 31 of each year, with the most current data available on those dates. Since annual average daily traffic (AADT) for a calendar year is not available until several months after December 31, the daily vehicle miles traveled (DVMT) calculation for both the June and the December report uses AADT from the previous calendar year in combination with the Centerline Miles as of the current date. This hybrid DVMT is therefore completely correct for neither the current nor the previous calendar year.

The new State Highway System Annual Reports are issued once a year, in the Spring after the previous year's AADT data are available. Thus the DVMT data are consistent and correct for the year being reported. We hope that data users will take advantage of the new Annual Reports, but we will continue to provide the Semi-Annual Reports for the time being, to allow for historical continuity.

• Entire State Highway System
• National Highway System Only
• Florida Intrastate Highway System Only
• Strategic Intermodal System Only