Streaming live · last sync ago

The traffic data layer for North America.

One REST API covering 65 jurisdictions across the US and Canada. Events, cameras, truck routes, bridge clearances — all normalized, all GeoJSON, all real-time.

14-day free trial No credit card 99.95% uptime SLA
Active events
Tracked features
Traffic cameras
Jurisdictions
Datasets ingested
Last sync
Built for
Teams that need traffic data they can trust in production
Fleet & logistics
Reroute around closures before drivers hit them. Bridge clearances, weight limits, and STAA truck routes in the same query.
GIS & mapping
RFC 7946 GeoJSON across the whole continent. Drop directly into Leaflet, Mapbox, deck.gl, ArcGIS — no transform layer.
Mobility analytics
Corridor reliability, P50/P95 clearance times, time-series event volumes. The data behind your dashboards.
Public sector & ops
Cross-jurisdiction situational awareness. Cameras, signs, road conditions, weather — one feed across DOT and provincial sources.
65
Jurisdictions normalized
60+
Feature types
RFC 7946
GeoJSON spec compliant
99.95%
Uptime target

One API. Every state. Every province.

Stop juggling dozens of incompatible 511 sources. Road511 normalizes 65 jurisdictions plus FHWA, NBI, NREL and WZDx into a single REST contract.

Unified Multi-Source API

50 US states, 13 Canadian provinces, plus FHWA, NBI, NREL and WZDx — all normalized into one consistent REST schema.

Real-Time Traffic Events

Incidents, construction, closures, weather. Severity levels, lifecycle tracking, line/point geometry. Sub-minute polling on hot feeds.

Rich POI Data

60+ feature types: cameras, rest areas, weigh stations, EV charging, signs, ferries, border crossings, truck parking, and more.

GeoJSON Native

RFC 7946 compliant. Drop into Leaflet, Mapbox, deck.gl, QGIS — zero transformation, zero glue code.

Geospatial Queries

Filter by radius, bbox, jurisdiction, road, severity. PostGIS spatial indexing for fast, ranked results.

Analytics & Trends

P50/P95 clearance times, corridor reliability scores, time-series volumes. Raw data → operational insights.

Webhook Notifications

HMAC-SHA256 signed payloads. Exponential backoff retries, delivery logs, auto-disable on 5xx streaks.

Trucking & Freight

FHWA STAA-designated truck routes, NHFN freight corridors, NBI bridge clearances and load ratings, plus state-published weight restrictions and truck parking.

Source Health Monitoring

Per-adapter circuit breaker (closed/open/half-open) with adaptive backoff. Live status dashboard for every feed.

Developer Experience

Clean, predictable, and boringly RESTful.

Two primary resources cover all traffic data: events for time-bounded incidents, features for points of interest. Filter by jurisdiction, type, severity, bbox, or radius.

Public Endpoints

  • GET/api/v1/events
  • GET/api/v1/events/geojson
  • GET/api/v1/features
  • GET/api/v1/features/geojson
  • GET/api/v1/features/types
  • GET/api/v1/jurisdictions
  • GET/api/v1/truck/corridor
  • POST/api/v1/routing/truck
  • GET/api/v1/stats/summary
  • GET/api/v1/analytics/trends
  • GET/api/v1/analytics/clearance
  • GET/api/v1/fuel-prices
  • GET/api/v1/health

Query Parameters

?jurisdiction=CA ?type=cameras ?bbox=... ?lat=&lng=&radius_km= ?severity=major ?road=I-405 ?status=archived
GET /api/v1/events/geojson?jurisdiction=CA 200 · 38ms
{
  "type": "FeatureCollection",
  "features": [
    {
      "type": "Feature",
      "geometry": {
        "type": "Point",
        "coordinates": [-118.243, 34.052]
      },
      "properties": {
        "id": "ca-evt-28491",
        "title": "I-405 NB lane closure",
        "type": "construction",
        "severity": "major",
        "status": "active",
        "jurisdiction": "CA",
        "start_time": "2026-04-21T08:00:00Z",
        "end_time": null,
        "source": "cwwp2"
      }
    }
    // + 247 more features
  ]
}

Beyond raw data — operational insight.

Road511 tracks every event's full lifecycle and surfaces the metrics fleet ops, engineering, and public-sector teams actually care about.

Clearance Times · I-405 NB
28min
P50 clearance
2.4hr
P95 clearance
94%
Reliability score
Active events · last 30 days

Event Trends

Time-series volumes by type, severity, and region. Spot seasonal patterns across jurisdictions.

Recent Changes Feed

Real-time stream of lifecycle events: created, status changed, severity updated, archived.

Event History

Full audit log per event — when it was created, every status change, when it was archived.

Corridor Reliability

Reliability scores for major highway corridors based on incident frequency, duration, severity.

Two resources. The whole continent.

Events for time-bounded incidents. Features for points of interest. Plus national trucking and freight data, all in the same schema.

Traffic Events

12,847 active
  • Incidents & Accidents2,134
  • Construction & Roadwork5,847
  • Road Closures892
  • Special Events418
  • Planned Maintenance1,236
  • Weather Advisories347
  • Lane & Chain Controls1,612
  • Truck & Weight Restrictions361

Feature Types

32 types · 1.4M features
Traffic cameras Rest areas Weigh stations Weather stations EV charging Dynamic signs Road conditions Service vehicles Ferries Border crossings Truck parking Bridge clearances Variable speed Park & ride Toll plazas + 17 more
Severity: Minor Moderate Major Critical Info

Complete North American coverage.

All 50 US states + DC + HI/AK, and 13 Canadian provinces and territories. 60+ adapter sources, normalized into a single API.

United States

52 jurisdictions
CANYTXFLWAORILPAOHMIGANCVA
MANJAZCOMNWIINMOTNALSCKYLA
MDCTOKIAKSARMSNVUTNMNEIDWV
HINHMEMTRIDESDNDAKVTWYDC

Canada

13 provinces & territories
ONQCBCABMBSKNSNBNLPEYTNTNU

National data services

  • FHWA · STAA-designated truck routes + NHFN freight corridors
  • NBI · Federal bridge clearances and load ratings
  • NREL · ~100k EV charging stations
  • WZDx · Work zones across 24 states + sub-state + federal feeds

Pick your routing volume. One bundled plan.

Every paid plan includes data API + truck routing. Pick your monthly routing-calls allotment per tier; switch yearly for 15% off.

Free Trial
$0 14 days
Evaluate the API
  • 60 RPM · 1k req/day
  • 2 jurisdictions
  • Events + cameras
  • Email support
Start free trial
Starter
$29 /mo
Solo developers
  • 300 RPM · 50k req/day
  • All 65 jurisdictions
  • GeoJSON bulk export
  • 500 results per page
  • Dedicated routing rate limit (separate from data API)
Get started
Enterprise
$299 /mo
Volume
  • Custom RPM · SLA
  • Bulk historical export
  • Private deployment
  • 25 webhooks · batched delivery
  • Dedicated CSM
  • Dedicated routing rate limit (separate from data API)
Get started

Need more routing? Buy top-up packs from the portal at any time — 250 calls ($5), 1,000 ($12), 5,000 ($50), or 10,000 ($90). Packs expire at the end of the current subscription month.
EU customers: 14-day money-back guarantee on your first paid subscription. Refund is net of any routing calls + data requests you've already used. Subsequent plan changes do not reset this window.

Get in touch

Questions about the API, custom integrations, or enterprise pricing? Drop us a line.

Start streaming traffic data in 5 minutes.

Free 14-day trial. No credit card. Get a key, paste it in your headers, you're live.