Roadway work zones can create hazardous conditions for motorists, pedestrians, and highway workers, and better, more accurate, and more timely data can reduce the risks of driving in work zones. Collecting, consolidating, and distributing this information, however, has been an ongoing challenge. The objective of Federal Highway Administration’s (FHWA) Work Zone Data Exchange (WXDx) initiative was to develop and promote the use of a common specification to collect and share data on work zone activities. This report presents case studies from five agencies on their past, on-going, and planned use of smart work zone technologies as a source of data for their WZDx feeds. The intended audience for this report includes state, regional, and local agencies seeking to use smart work zone technologies, as well as those looking to establish a WZDx feed and those integrating real-time data with other data sources, such as work zone planning and tracking systems. This report will assist agencies by highlighting recent and ongoing efforts by peer agencies; summarizing their challenges, lessons learned, and recommendations; and providing additional resources.