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.”

For more information on companies in this article

Related Content

  • Zero emission delivery vehicle project begins in Houston
    September 2, 2013
    The Houston-Galveston Area Council (H-GAC) has teamed up with the Center for Transportation and the Environment (CTE) and Smith Electric Vehicles Corporation to reduce vehicle emissions from delivery trucks in the region. As part of a US Department of Energy (DOE) sponsored effort, local fleets will replace existing diesel delivery vehicles with thirty all-electric medium and heavy-duty Smith Newton trucks for daily operations in the Houston-Galveston area.
  • TTI, TxDOT to test connected vehicle technology
    January 9, 2015
    Texas A&M Transportation Institute (TTI) has teamed up with the Texas Department of Transportation (TxDOT) to undertake a four-year project to test connected vehicle technology on a portion of I35 in the state. Funded by a US Department of Transportation (USDOT) grant, the US$2 million project, called I-35 Connected Work Zone, will initially focus on improving freight movement along the construction corridor by providing long-haul trucks a steady stream of traveller information through on-board devices c
  • Iteris releases ClearMobility Cloud
    January 29, 2021
    New mobility solution works with ClearMobility Platform and third-party cloud systems
  • MDOT uses connected vehicle technology to clear snow and ice
    January 9, 2017
    Connected vehicle technology is helping Michigan Department of Transportation (MDOT) clear snow and ice from roadways faster, using GPS-based automatic vehicle location (AVL) devices on its winter road maintenance equipment. These systems report where each truck is, and they gather data from other sensors to report details like atmospheric conditions, camera images, and speed and salt application rates for each vehicle.