Telemetered Traffic Monitoring and Weigh-in-Motion Systems: How it Works

The Transportation Data and Analytics (TDA) Office’s Traffic Monitoring Program coordinates the collection of traffic data on all State highways and many highways not on the State Highway System. Depending on location, traffic data may include daily counts, vehicle classification, speeds, weight, directional factor, truck factor, and design hour factor. The network operations consist of around 300 continuous traffic monitoring sites for daily transmittal to the Transportation Data and Analytics Office. Traffic data is collected from January through December of each year and then converted into annual statistics during the 1st quarter of the next year. The annual traffic statistics are posted to the following website by April of each year: tdaappsprod.do....
This edition of DataLytics introduces how FDOT TDA Traffic Monitoring Data is collected (as observed) on our roadways. Each vehicle that passes a Telemetered Traffic Monitoring Station (TTMS), triggers an event which is then stored as data. The focus of this animation is on the embedded sensors in the roadway since they serve as the source of this data. These sensors should not be confused with signal activation or other Intelligent Transportation System (ITS) related equipment. Weigh-in-Motion (WIM) sensors are also introduced.
For additional DataLytics information, please visit: www.fdot.gov/st...