News and Resources

April 14, 2022

Connected Work Zone Notification System (CWZNS) & Work Zone Data Exchange (WZDx)


During National Work Zone Awareness Week, we are looking at ways of keeping work zones safer. One way to achieve this is through sharing essential work zone information through connected technologies.

The Work Zone Data Exchange (WZDx) Data Feed

Providing real-time information to motorists in their vehicles and to Departments of Transportation, is the next generation of safety benefits to reduce work zone incidents and fatalities. The US DOT/FHWA has created and is encouraging the use of the Work Zone Data Exchange (WZDx) data feed. The WZDx is a universal and open common specification/language that provides real-time work zone data for Connected and Automated Vehicles (CAV) and other third-party stakeholders, such as mapping and navigation companies.


Connected Work Zone Notification System (CWZNS)

Ver-Mac’s Connected Work Zone Notification System connects critical work zone devices to alert motorists when they are entering and leaving work zones, approaching lane closures, or need to be aware of reduced speeds or the presence of workers. The system publishes real-time information to Waze to inform motorists, and to DOTs and Traffic Management Centers through the WZDx feed.


The WZDx V4.0 now features a standard Smart Work Zone Field devices feed. All Ver-Mac devices are WZDx V4.0 compatible. The SWZ device categories include:

  • Arrow Boards: location & arrow pattern display
  • Camera Trailers: location & URL for latest still image
  • Portable Message Signs: location & current message
  • Flashing Beacons: location, application & message
  • Hybrid Signs: static text with dynamic LED display (ex.: digital speed limit device that communicates the new regulatory speed limit)
  • Location Markers: critical GPS location markers
  • Traffic Sensors: location & traffic data over interval
The Connected Work Zone Notification System along with the WZDx Smart Work Zone Feed provide the next generation of technology to make work zones safer today and in the future.