Cohort Atlas
Low-Latency HPMS
Near real-time alternative to HPMS. Continuous, GPS-derived traffic volumes, vehicle classifications, and time-of-day profiles across the contiguous United States with approximately 4-day latency.
~4 days
Observation to delivery
CONUS
48 contiguous states
Passenger + Truck
Vehicle classification
Hourly
Time-of-day resolution
Cohort Atlas vs HPMS
| Metric | Cohort Atlas | HPMS |
|---|---|---|
| Latency | ~4 days | ~18 months |
| Temporal Resolution | Hourly | Annual (AADT) |
| Update Cadence | Weekly | Annual |
| Vehicle Types | Passenger + Freight | Combined |
| Coverage | All public roads | Federal-aid |
| Confidence Scoring | Per-estimate | N/A |
Use Cases
Product Access
APIs
Programmatic access to corridor-level volumes, speeds, and classifications.
Dashboards
Interactive visualization of traffic patterns and historical trends.
Corridor Reports
Custom reports with confidence scoring for specific highway segments.
Privacy-preserving. No PII. All data anonymized at collection. Per-estimate confidence intervals. Not a substitute for engineering-grade traffic studies where direct measurement is required.