Permanent Automatic Traffic Recorder Stations (ATR´s) - Trend Summaries
The TSM Unit currently only publishes vehicle classification breakdowns at the Permanent Automatic Traffic Recorder Stations (ATR). We publish vehicle classification data according to the FHWA Scheme-F 13 vehicle guidelines plus an additional 14th class for triple trailer trucks. FHWA Vehicle Classification Definitions
Please see the next section for additional classification information on State Highways.State Highway Vehicle Classification Datahttp://highway.odot.state.or.us/cf/highwayreports/traffic_parms.cfm
The TSM Unit collects classification data on all state highways. We classify vehicles according to the FHWA Scheme-F 13 vehicle guidelines. FHWA Vehicle Classification Definitions
This presentation of the data differs from the Volume Tables in that it is presented by range rather than location. The mile point shown is not where the count was taken, but rather the beginning of the range the count is considered to represent. The data presented in the classification report also includes the AADT, design hour factor and ton mileage factor.
For additional classification information on a State Highway, please contact the Traffic Monitoring Coordinator, Don Crownover: firstname.lastname@example.org or John Barnard
: email@example.comPermanent Automatic Traffic Recorder Stations - Location Maps
Permanent Automatic Traffic Recorder Stations - Location Maps Area Enlargements
For each station, ten years of historical data is listed showing the annual average daily traffic (ADT). The maximum day, maximum hour, 10th, 20th, 30th highest hours are shown in percent of ADT. Asterisks (****), indicate recorder was inoperative during periods of maximum expected traffic.
The ATR data consists of both the Average Weekday Traffic (AWD) and Average Daily Traffic by months. Also a vehicle classification breakdown is shown by percent of ADT. Classification counts were obtained for 16, 24, or 48 hour periods..
(For ATR data previous to 1995, please contact us at 503-986-4147)