VIDEO: Virginia DOT deploys V2X geofence for workzones


A fully functional V2X smart workzone technology system is being deployed this week (May 23-25) in a workzone along U.S. Route 23 in Wise, Virginia. The system is expected to decrease injuries and fatalities in roadside workzones by providing early detection of threats and quickly informing workers and drivers of dangers.

The deployment is a partnership between Virginia Tech Transportation Institute (VTTI) researchers have partnered with the Virginia Department of Transportation (VDOT) and GeoStabilization International

Designed to protect roadside workers and motorists, the works zone system creates a digital boundary and alerts workers when they approach its edge, keeping them safe from potential hazards.

Originally developed in 2020 through a collaboration between VTTI, VDOT, and the Virginia Transportation Research Council (VTRC), the smart workzone system has been tested on the Virginia Smart Road and in Northern Virginia through partnerships with Audi, VDOT, Qualcomm, American Tower Corporation, and Commsignia.

The institute’s research team received the second place Innovation Award from the American Traffic Safety Services Association at the 2022 Convention & Traffic Expo for its work on the smart workzone technology. Now, the system is being tested in a new area of Virginia.

“The system helps workzone designers create layouts that accurately reflect the guidelines established in VDOT’s Work Area Protection Manual, while facilitating the collection of an accurate digital representation of the workzone,” says Mike Mollenhauer, director of the division of transportation implementation at VTTI. “The standardized digital representation could be distributed to connected and automated vehicles in the future or to third party application providers such as the Waze and Google navigation apps.”

Student researcher Daniel Burdisso (at left) and Research Associate Will Vaughan stand with the VTTI smart work zone system. Photo by Jean Paul Talledo Vilela for Virginia Tech

The workzone system includes wearable smart vests that accurately monitor the location of workers and predict potential hazards from passing motorists. A mobile base station broadcasts workzone information to connected vehicles and smart channelizing devices that automatically define workzone boundaries and improve communications reliability between workers and the base station. Smart cones are used to create a boundary by extending the wireless link range for reliable communication to the base station.

The smart workzone can be managed through the Work Zone Builder Application, which allows for designing workzone deployments by using temporary traffic control templates that include placement of appropriate signage, channelizing devices, and other workzone elements.

“VTTI is ahead of the game by supporting cellular vehicle-to-everything connectivity [C-V2X],” said Jean Paul Talledo Vilela, senior research associate at VTTI. “This smart workzone allows messages and alerts to be exchanged with vehicles equipped with similar C-V2X technology when the vehicle is passing a workzone. In return, it is adding another layer of safety for both passing motorists and workers in the roadside workzone through alerts and messages.”

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Tom has edited Traffic Technology International (TTi) magazine and its Traffic Technology Today website since May 2014. During his time at the title, he has interviewed some of the top transportation chiefs at public agencies around the world as well as CEOs of leading multinationals and ground-breaking start-ups. Tom's earlier career saw him working on some the UK's leading consumer magazine titles. He has a law degree from the London School of Economics (LSE).