Monthly Vehicle Miles of Travel

The Traffic Data Branch produces a Monthly Vehicle Miles of Travel (MVMT) report (often called the "Trend" report). This report estimates the number of vehicle miles that motorists traveled on California State Highways using a sampling of up to 20 traffic monitoring sites. Various roadway types are used to calculate VMT. The Monthly Vehicle Miles of Travel report for the California State Highway System gives the estimated vehicle miles driven and the resulting percentage changes in travel. The "Percentage of Change in Travel" charts are for driven over a three-year period.

For information regarding the monthly trend reports, please contact Hasib Mohabbat

For travel reports, surveys, and forecast documents, especially related to fuel consumption, Commercial Truck VMT, and VMT data per capita, please contact another area of Caltrans: Caltrans Division of Research, Innovation, & System Information