— How timely is the traffic speed on OHGO? How often is the data updated?
OHGO receives updated traffic speed data from probe-based systems approximately every minute. The probe-based speed data is obtained from companies under contract with ODOT to provide the data. There may be a slight lag time from the time the speed is gathered by these companies and then reported to ODOT and then posted on the speed display website although it's generally only a few minutes. They do not report individual speeds and are not used for law enforcement. The speeds are color-coded and represented on the speed display map. To ensure you are viewing the latest traffic speeds in the map, click the Update Map button. The speed display automatically update on the map on OHGO.com and the OHGO app.
— What do the colors mean in the traffic speed display?
The colors represent the average traffic speeds currently detected along monitored roadway segments. The range of speeds that each color represents is shown below:
— Why does the traffic speed display sometimes contain gray areas?
In some cases, OHGO may be unable to receive traffic speed data from one or more remote traffic speed sensors. If OHGO does not have enough traffic speed data to calculate the average speed of a roadway segment, the segment displays as gray. Gray segments are usually temporary. Click the Update Map button to refresh the traffic speed display.