Inrix aggregates and enhances traffic data, along with other information that impacts traffic, from hundreds of sources to deliver the highest quality and broadest traffic coverage possible. We acquire real-time sensor data—occupancy and speed measurements for road segments—from Department of Transportation sensor networks as well as GPS-based data and other public and private sources. In addition, we acquire real-time traffic incident data from leading public and private providers that closely monitor our nation’s freeways and highways.

Inrix ensures appropriate geo-coding of all traffic sensor and incident data to the proprietary Inrix Sensor Group level—a unique and highly logical grouping of sensors which comprises an independent stretch of road of interest, independent of the underlying choice of map data vendor.

Inrix is dedicated to delivering high quality traffic information. Since up to 30% of individual freeway sensors in many markets may be malfunctioning at any given time, Inrix has developed sophisticated statistical models for detecting, reporting and correcting the health of individual sensors. Through a combination of Department of Transportation (DOT) loop sensor analysis and post-hoc detection using Inrix’s forecasting engine, we detect and correct erroneous sensor data.