Work Zone Data Exchange (WZDx) Specification

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. Specifically, the project aims to get data on work zones to vehicles to help automated driving systems (ADS) and human drivers navigate more safely. The Work Zone Data Working Group released version 4.0 of the WZDx Specification in December 2021. This update reorganizes the feed to make room for smart work zone device data and non-work zone road restrictions as well as permitting road owners to share more nuanced information about worker presence in work zones.