The Traffic Research unit collects and summarizes all vehicle volume, classification and weight data for the Agency, evaluates the variation in traffic volumes monthly, forecasts growth in traffic by total vehicle volume, vehicle type and vehicle weight, and prepares traffic forecasts for all agency projects. This unit is also responsible for reviewing Act 250 development traffic impact studies as they pertain to use of the state highway system.

The Traffic Research Unit produces many traffic data reports, which are available in spreadsheet and PDF format.

Actual (raw) count data is available upon request for any turning movement counts found in the Turning Movement Database publication, and for any recent (1990 to present) count found in the Automatic Traffic Recorder Station History publication.