Automated Traffic Data Collection Report - Monthly

The Automated Traffic Data Collection report is produced monthly and shows the permanently installed traffic reporting sites which collected data for the current month. The Automated Data Collection (ADC) sites on the report are listed by two categories (Urban and Rural) site name, location, leg and State Route Milepost (SRMP). The ADC traffic report is a compilation of collected data from various sources which include, Transportation Data Office, NW Regional Traffic Office, Seattle Ferries, Oregon State, and Idaho State when available.

The data available in this report are Average Daily Traffic (ADT) comparisons from last year to this year, same month percent Increase/Decrease, maximum traffic/maximum day listing date and hour, last available months percent difference, and missing data in this month or last year same month.

The users of this publication are typically Traffic Engineers, State Planners, Traffic Operations, State Officials, other government agencies, and private business and individuals.

Questions or comments regarding the Automated Traffic Data Collection Report, please Email the Automated Data Collection & Processing Section or call by phone at (360) 570-2392.