One API. 57 Jurisdictions. Every road data type. Every US state and Canadian province runs its own 511 traffic system. Different formats. Different auth. Different update schedules. Building a single integration takes weeks. Road511 normalizes all of it. One REST endpoint, one schema, one auth flow — across 57 jurisdictions. What you get Traffic events — real-time incidents, construction, closures, with lifecycle tracking and WZDx feeds from 24 states 10,000+ live cameras with direct image URLs across 40+ states/provinces DMS sign messages — what's on the highway boards right now 621,000 bridges from the FHWA NBI with height clearances, weight ratings, and posting status 479,000+ truck route segments (STAA National Network) plus freight corridors and weight restrictions RWIS weather stations, road conditions, rest areas, EV charging, fuel prices Native GeoJSON for Leaflet, Mapbox, ArcGIS, QGIS — drop straight onto a map PostGIS corridor queries — find every restriction along a route, filtered by truck height + weight Why it matters HERE, TomTom, INRIX, and Google sell traffic flow from probe data. None offer cameras, DMS signs, bridge clearances, or truck routes via API. Road511 is the only normalized source for that infrastructure layer — at 10–100× lower cost than enterprise traffic APIs. Try it Live map: https://map.road511.com (no signup) Free API key: https://portal.road511.com (14-day trial, no credit card) Docs: https://road511.com/docs.html Blog: https://road511.com/blog.html Built with Go, PostgreSQL/PostGIS, and a database-driven adapter registry that makes adding a new state a one-line config change.

Road511 API

One API for North American traffic, bridges & truck data

One API for North American traffic, bridges & truck data