One REST API covering 65 jurisdictions across the US and Canada — events, cameras and bridge clearances, all normalized GeoJSON. Then route a truck through it and get back every hazard on the corridor as severity-ranked warnings.
Stop juggling dozens of incompatible 511 sources. Road511 normalizes 65 jurisdictions plus FHWA, NBI, NREL and WZDx into a single REST contract.
Truck-aware routing from origin to destination, enriched with every hazard on the corridor — bridge clearances checked against your height, weight & dimension limits, hazmat rail-crossing stops, live incidents and weather. Each warning is severity-ranked with a projected arrival time.
50 US states, 13 Canadian provinces, plus FHWA, NBI, NREL and WZDx — all normalized into one consistent REST schema.
Incidents, construction, closures, weather. Severity levels, lifecycle tracking, line/point geometry. Sub-minute polling on hot feeds.
60+ feature types: cameras, rest areas, weigh stations, EV charging, signs, ferries, border crossings, truck parking, and more.
RFC 7946 compliant. Drop into Leaflet, Mapbox, deck.gl, QGIS — zero transformation, zero glue code.
Filter by radius, bbox, jurisdiction, road, severity. PostGIS spatial indexing for fast, ranked results.
P50/P95 clearance times, corridor reliability scores, time-series volumes. Raw data → operational insights.
HMAC-SHA256 signed payloads. Exponential backoff retries, delivery logs, auto-disable on 5xx streaks.
The datasets behind the routing engine: FHWA STAA truck routes, NHFN freight corridors, NBI bridge clearances and load ratings, plus state-published weight restrictions and truck parking — queryable on their own too.
Per-adapter circuit breaker (closed/open/half-open) with adaptive backoff. Live status dashboard for every feed.
POST /api/v1/routing/route with an origin, a destination, and your truck's profile. We compute the routing geometry, then run the whole corridor through our live traffic database — and hand back a severity-ranked list of everything in the truck's way.
Every NBI overpass on the route checked against your truck's height, with a tunable safety pad. Under-clearance fires a critical warning before dispatch.
Posted height, width, length and weight limits along the corridor, flagged per violated dimension so you know exactly which constraint your load trips.
Public at-grade crossings on the route, with 49 CFR 392.10 mandatory-stop awareness for placarded hazmat loads and a heads-up on high-volume crossings.
Active crashes, closures and planned work intersecting the route — temporally filtered to your projected travel window so stale events don't add noise.
Weigh stations and inspection checkpoints ahead, so dispatch and drivers know where they'll be pulling in — no surprises on the scale.
RWIS conditions and weather alerts on the route, drawn from the same stations that power our weather-incident correlation.
Send the driver's HOS clock and get back exactly where they'll have to break or stop driving under FMCSA rules — each point paired with the truck parking and rest areas still reachable before the limit. Free on every plan.
Opt into tolls and the route comes back priced for your axle count and weight — itemized per toll system and rolled up per currency, so you can bid and invoice the lane accurately.
Plus up to 3 alternative routes, a projected arrival time on every warning, tunable enrichment (severity floor, buffer radius, clearance pad, temporal filter), auto-saved routes you can re-check for free against the latest conditions, and webhook monitoring on the routes you persist.
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.
{
"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
]
}
Road511 tracks every event's full lifecycle and surfaces the metrics fleet ops, engineering, and public-sector teams actually care about.
Time-series volumes by type, severity, and region. Spot seasonal patterns across jurisdictions.
Real-time stream of lifecycle events: created, status changed, severity updated, archived.
Full audit log per event — when it was created, every status change, when it was archived.
Reliability scores for major highway corridors based on incident frequency, duration, severity.
Events for time-bounded incidents. Features for points of interest. Plus national trucking and freight data, all in the same schema.
Every US state plus all 13 Canadian provinces and territories — normalized into one API across the continent.
All 50 US states + DC + HI/AK, and 13 Canadian provinces and territories. 60+ adapter sources, normalized into a single API.
Every paid plan includes the data API + truck routing with live hazard warnings. Pick your monthly routing-calls allotment per tier; switch yearly for 15% off.
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.
Questions about the API, custom integrations, or enterprise pricing? Drop us a line.
Free 14-day trial. No credit card. Get a key, paste it in your headers, you're live.