Measuring delay at signalized intersections
summary
Algorithm estimates total vehicle time-loss from VLOG logs using only stop‑line detectors, implemented in the YAVC/YAVV tools and tested against SUMO ground truth. Data from intersections with over 50 detectors and controllers used by Rotterdam/Nijmegen produce three 12‑hour runs; a toy case totals nearly 200s delay. Results under‑estimate when queues form upstream of short lanes and over‑estimate with structural overflow; average agreement is reasonable but sensitive to gap/overflow thresholds and detector layout, so it’s useful for comparison not absolute truth.
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