API Documentation

The following outlines the resources available via the 511WI API.

API Documentation

Returns all cameras.

Message Signs

Returns all VMS.

Truck Parking

Returns all truck parking.

Winter Road Conditions

Returns current road conditions.


Returns all traffic events.


Returns all alert notifications.

Travel Times

Returns all travel times.


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