Anonymous location pings
Location + speed sent periodically. Anonymized. Opted-in via 'improve location services'. No user identity leaves device.
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Anonymous location pings
Location + speed sent periodically. Anonymized. Opted-in via 'improve location services'. No user identity leaves device.
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Map matching
GPS is noisy. Match observed lat/lng to a specific road segment. Kalman filters + snap-to-road heuristics.
Segment-level aggregation
Averaged speed per road segment per minute. Fewer pings on smaller streets → wider confidence intervals.
Expected vs actual
Historical speed for this segment at this day-of-week + hour vs actual now → color: green/yellow/red.
Incident detection
Sudden drop in speeds → potential incident. Cross-referenced with reports. Push notification to users on route.