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UDOT fits snowplows with V2X radios to request green lights as statewide rollout expands
Summary
The Utah Department of Transportation said about 100 snowplows in Regions 2 and 3 have onboard units that can request green lights; contractor Narwhal is installing roadside units at more than 300 intersections from Logan to St. George to expand signal preemption for plows and transit.
Grant Potter, a videographer for the Utah Department of Transportation, said UDOT is equipping snowplows with vehicle-to-infrastructure technology that lets plows request green lights at intersections to clear roads faster and reduce hazards.
The technology, known as signal preemption, uses onboard units, or OBUs, inside snowplows and roadside units, or RSUs, mounted at traffic signals. Traffic Operations Center staff member Blaine Leonard said about 100 snowplows in Regions 2 and 3 currently have OBUs and that the system lets a plow ‘‘request a green light’’ as it approaches an intersection so the driver can keep moving and focus on plowing.
"We put these radios, we call them onboard units, OBUs, in a number of our snowplows. I think we currently have about a hundred snowplows in…
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