Threat assessment of traffic moving toward a controlled intersection

This paper presents an approach for threat assessment of traffic flows in a controlled intersection, based on empirical traffic data observed in an urban environment. The real-world traffic data collected from an observation study allows a glimpse of representative traffic patterns. The analysis of such data yields insights into the behaviors of traffic streams as a function of traffic signal phases. The determination of these critical parameters provides a practical basis for the developments of safety algorithms for threat assessment, and it serves as a grounded foundation for assessing sensing requirements for an effective intersection decision-support system.