An Official Site
Skip Ribbon Commands
Skip to main content
Navigate Up
Sign In

Quick Launch

Traffic Survey Reports & Maps

The Traffic Survey Reports list an estimate of Annual Average Daily Traffic (AADT) volumes separated by cars (Pass &A Com’l) and trucks (B&C Com’l) for all Ohio Interstate, US and State highway system routes. The reports are generated using a combination of short-term and permanent counts collected during the calendar year shown in the upper right corner of the report. The reports show traffic volumes for each county by the state system route number sorted in ascending order. (See the key to the right for explanations of report abbreviations.)

The Traffic Survey Flow Maps are meant to complement the Reports.

Click on a county in the map below to download Traffic Survey Reports and Flow Maps from a table to the right of the map for available years.

Any questions or issues, contact Dave Gardner, (614) 752-5740 or