API Documentation
The REST API provides simple interfaces to most of the data available on the 511WI website. The REST API enables developers to access essential data on the 511WI website including Cameras, Message Signs, Truck Parking, Winter Road Conditions, Events, Alerts, Travel Time. This API enables developers to create mobile traffic apps for Wisconsin.
Notes:- Requires a developer key. For most calls, query string 'key' parameter is required.
- Throttling is enabled. Ten calls every 60 seconds.
The following outlines the resources available via the 511WI API.
| Resource | Description |
|---|---|
| Cameras |
Returns all cameras. |
| Message Signs |
Returns all VMS. |
| Truck Parking |
Returns all truck parking. |
| Winter Road Conditions |
Returns current road conditions. |
| Events |
Returns all traffic events. |
| Alerts |
Returns all alert notifications. |
| Travel Time |
Returns all travel times. |
WZDx
The Work Zone Data Exchange (WZDx) Specification enables infrastructure owners and operators (IOOs) to make harmonized work zone data available for third-party use. The intent is to make travel on public roads safer and more efficient through ubiquitous access to data on work zone activity, and WZDx was developed to improve access to work zone data was one of the top needs identified through the US Department of Transportation (USDOT) Data for Automated Vehicle Integration (DAVI) effort.
Visit the WZDx Specification for more API documentation.
Access the WZDx API: https://511wi.gov/api/wzdx
TPIMS
The Truck Parking Information Management System (TPIMS) API guidance provides a recommended approach for implementing web services that will facilitate the sharing of truck parking availability data with other users. The data elements and formatting were agreed upon by the eight states participating in the MAASTO TPIMS project and are intended to set a standard for future projects.
Click on the TPIMS website for more API documentation.
Access the TPIMS API:
Developers Access Agreement for 511 API