Skip to main content

Nema releases comms standard for connected vehicles

US body says it will ensure better communication for wireless safety messages
By David Arminas February 10, 2025 Read time: 2 mins
Nema's Connected Vehicle Infrastructure – Roadside Equipment Standard (NEMA TS 40010-2024) will facilitate better cybersecurity measures for the wider transportation system (© Evgeniya Leonova | Dreamstime.com)

Nema, the National Electrical Manufacturers Association, has released a communication standard connected vehicle infrastructure and roadside equipment.

A vital component of the connected vehicle ecosystem is the ability for vehicles and infrastructure to communicate regardless of the type of device or underlying technology. Nema says that its Connected Vehicle Infrastructure – Roadside Equipment Standard (NEMA TS 40010-2024) will facilitate better communication among over-the-air wireless safety messages, applications and cybersecurity measures for connected vehicles and the larger transportation system.

Nema believes that the standard will provide better detection and warning systems for drivers when vulnerable road users such as pedestrians are present, reduce accidents and traffic congestion, and decrease carbon emissions.

One example of how connected vehicle technologies are improving roadway conditions can be found in Detroit. The Michigan state’s department of transportation is piloting sensors in vehicles that collect data about roads and ‘signal preemption’ that enhances communication between ambulances responding to emergencies and roadside controllers.

Nema’s Transportation Management Section developed its new standard as a resource for transportation infrastructure owners and operators who procure the equipment for secure communications among vehicles, infrastructure and personal devices.

Nema’s standard contains key guidance that enables agencies and other transportation infrastructure owner/operators to procure and deploy connected vehicle roadside units to. The goals are to reduce crashes and roadway fatalities as the highest priority, reduce traffic congestion, fuel consumption and emissions; and provide automated vehicles with situational awareness to supplement onboard sensors.

“As we electrify and connect the transportation sector, Nema’s standard will be a valuable tool to transportation leaders to inform their procurement decisions and improve communication on our roadways,” said Patrick Hughes, senior vice president for technical affairs at Nema. 

“Transportation infrastructure is a long-term investment and today’s decisions will either accelerate or hit the brakes on the transition to an electric, connected transportation sector. Improving safety and reducing emissions is possible using today’s technology. But infrastructure owners and operators must make informed decisions grounded in industry standards like this one.”

Related Content

  • February 15, 2024
    NoTraffic V2X tech gets US patent approval
    Platform offers software-defined infrastructure including signalised intersections sensors
  • January 25, 2012
    Connected vehicle technology the solution to safety?
    A series of 'driver clinics' is under way across five states, as vehicle manufacturers and the US Government pin their hopes on connected vehicles becoming the next big advance in road safety. Pete Goldin reports. What would a car say if it could talk? Its first words might be: "Here I am". Many vehicles are communicating that very message to each other right now. Admittedly, this is in controlled environments of US Department of Transportation (USDoT) tests, but within the next few years 'connected vehicle
  • November 20, 2013
    US Congress debates autonomous vehicles
    Emerging technologies have the potential to significantly reduce vehicle crashes and associated fatalities, according to Kirk Steudle, director of the Michigan Department of Transportation, testifying at the US House Transportation and Infrastructure Committee, Subcommittee on Highways and Transit. Speaking on behalf of the American Association of State Highway and Transportation Officials, Steudle said, "Nothing is more exciting than the potential safety benefits of this emerging technology," said Steud
  • April 12, 2013
    Connected vehicles - potential to transform US transportation
    There’s a new face in the driving seat at the US Department of Transport’s ITS Joint Program Office. Fortunately, as Robin Meczes finds out, he’s no learner driver… Ask Kenneth Leonard why he wanted his new job as director of the ITS Joint Program Office, and his answer comes back without a second’s delay. “The potential to save lives, reduce injuries and help people enjoy a more efficient transportation system is the kind of challenge that makes me want to come to work each morning,” he says. “In my opinio