INDOT implements new roadway worker safety initiative

Guardian Angel safety lights are wearable devices with flashing green patterns that increase worker visibility from all directions. When worn with a high visibility vest, these lights help workers become 89 percent more visible to the traveling public according to a study from Battelle Memorial Institute. 

Bright green is the most visible color to the human eye and is the most visible from longer distances. The color green is also easily distinguishable from the rest of INDOT’s standard work zone lighting. 

“Studies show drivers are more likely to move over and slow down when they see these green lights in work zones,” said INDOT Commissioner Lyndsay Quist. “The safety of our team is always our top priority as they make improvements to Indiana’s infrastructure, and we hope this small tool will have a big impact.”  

INDOT began piloting the green safety lights in fall 2025 within the three Hoosier Helper patrol areas – Northwest Indiana near Gary, Indianapolis metropolitan area, and Southeast Indiana near Louisville – and within highway maintenance crews in the Indianapolis Subdistrict and various crews throughout the state. 

As the program moves forward, approximately 375 lights will be distributed across the state, starting with the INDOT Northwest District. INDOT Highway Technicians and Hoosier Helpers are encouraged to use the green lights during nighttime operations, as well as during times of inclement weather like fog, rain or snow, when visibility might be lower. 

Green safety lights were brought to INDOT through its Innovation and Process Improvement Division . Innovation is one of INDOT’s core values as the agency looks to challenge the status quo through creative thinking and new technologies. An annual competition is held for INDOT employees to submit innovative ideas that make jobs safer, more efficient and more effective. Those ideas are then voted on internally and implemented throughout the agency. 

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About the Indiana Department of Transportation
INDOT is responsible for planning, constructing, maintaining, and operating the State of Indiana’s more than 29,000 highway lane miles and 5,700 bridges, and providing support for 4,500 rail miles and 127 aviation facilities throughout the Hoosier State. With six district offices and over 3,500 employees, INDOT works to ensure safe, efficient, and reliable transportation infrastructure while supporting the state’s economic vitality. The department is committed to fostering innovation, sustainability, and safety in transportation planning and development, in addition to collaborating with local governments and private sector partners to meet the state’s transportation needs. For the eighth consecutive year, Indiana has placed in the top ten in the nation for infrastructure in CNBC’s “America’s Top States for Business” rankings. Learn more at in.gov/indot.

About Buckle Up Phone Down
Buckle Up Phone Down is a safety initiative adopted by the Indiana Department of Transportation in late 2023. Unrestrained motorists and passengers, as well as distracted driving continue to be contributing factors in fatal and serious injury crashes on Indiana roadways. Buckle Up Phone Down is one of many efforts to change driver behavior and improve roadway safety across Indiana.

The actions are simple: when you get into a vehicle, buckle up. If you are the driver, put the phone down. Every trip. Every time. Learn more and accept the challenge at BUPDIN.com.