This technology typically uses alarms or alerts linked to radar-, camera- or infrared-based* hardware and accompanying analytical software. Among other uses, the alarms are designed to advise workers when unwanted pedestrians, including employees, have entered potentially dangerous areas of a worksite. They also have uses in roadway construction to determine if vehicles have or will break through barriers, potentially striking workers and/or equipment.**
Hazardous situations they mitigate:
* California Department of Transportation: Effectiveness of Work Zone Intrusion Alarm (WZIA)
** Safety+Health magazine: Safer Work Zones
