NEMA standard specifies for coexistence of connected vehicle roadside infrastructure

Oct. 28, 2019
A vital component of the connected vehicle ecosystem is the ability for vehicles and the infrastructure to communicate with each other regardless of the type of device or underlying technology.

A new National Electrical Manufacturers Association (NEMA) standard will harmonize and could accelerate deployment of connected vehicle roadside infrastructure technology, according to a preview of the standard presented at the recent Intelligent Transportation Society of Georgia (ITSGA) Annual Meeting in Athens, GA.

Commissioned by the NEMA Transportation Management Systems Section, NEMA TS 10 Connected Vehicle Infrastructure-Roadside Equipment is described as a harmonized technical specification for roadside connected vehicle devices. Types of roadside devices covered under the standard are traffic signals, crosswalk signs, flashing school zone safety beacons, ramp meters, and other electronic traffic control equipment.

A vital component of the connected vehicle ecosystem is the ability for vehicles and the infrastructure to communicate with each other regardless of the type of device or underlying technology. With NEMA TS 10, Dedicated Short Range Communications (DSRC) and Cellular Vehicle to Everything (C-V2X) can work together in the same spectrum via a dual-mode or dual active roadside connected vehicle device.

“It’s evident that, for the time being, these technologies will coexist in the marketplace,” said Steve Griffith, NEMA Transportation Industry Director, during a panel session at the meeting. “NEMA TS 10 will enable user agencies to have confidence in procuring roadside infrastructure equipment that will not become obsolete as communication technology advances.”

"The roadside connected vehicle devices proposed are designed for extensibility and provide the ability to implement future wireless technologies and applications, without the need for replacement within the devices expected service life,” Griffith added. The NEMA Connected Vehicle Infrastructure Technical Committee is currently drafting the standard and is expected to be completed by the end of 2019. Learn more about the NEMA Transportation System Division.

In the video below, Bloomberg Technology's Ed Ludlow reports on how connecting cars to each other and the infrastructure around them could play an important role in the future of autonomous vehicles and improving safety.

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