11/29/20
Traffic Signal State Prediction Correction and Real-time Probe Data ValidationUS Patent Office grants TTS' 6th patent "Traffic signal state prediction correction and real-time probe data validation Patent 10,878,693"
Traffic signal state predictions for fixed-time signals are generated based on their scheduled timing plan and the current clock/time, but these predictions are subject variations, for example, due to traffic signal controller clock drift. Real-time actual, not predicted, data is collected and utilized to correct for these variations. Further, real-time probe data is collected and used to validate correctness of the generated predictions in real time. 
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