Looking into Detection, Model Results and Message Quality Improved Data Verification, Liability and Quality

摘要

Providing publishing the "traffic situation" has become a state of the art procedure for road operators. A map showing the road network and a red-amber-green color scheme indicating the "Level of Service" or at least showing icons with traffic messages like "Jam", "Slow moving Traffic" and other incidents is a must-have.rnThe information provided is produced in many ways. Starting historically with manual editing work, followed by fairly sophisticated detection data processing and today using online modeling approaches and floating probe data to generate these pictures. But how can we assess how ACCURATE this information is?rnThis technical paper shows an approach to how the processing from detection data to event messages can be presented in a transparent way to the quality assessing engineer. At a glance, it can be seen whether the system works correctly or if any failures make the results less trustworthy. Finally, it is shown how this approach can be used to compare different sources of information and to assess their quality.