ITE Journal - April 2020 - 14

RESOURCES  |  inside ite

ITE's Role in Developing Connected
Vehicle Guidelines and Standards
By Siva R. K. Narla (M) and Nicola Tavares

ITE has traditionally been one
of five Standards Development
Organizations (SDO) designated
by the U.S. Department of
Transportation (USDOT) to develop
ITS standards for over two decades
under a cooperative agreement
with the USDOT. ITE has also been
the lead SDO for ITS Standards with
the American Association of State
Highway Transportation Officials
(AASHTO) and National Electrical
Manufacturers Association (NEMA) as
partners in the past decade.

How to Participate
in RSU and CI Projects

To participate as a stakeholder in the
RSU Standardization or the Connected
Signalized Intersection Guidelines,
please email us at Standards@ite.org
with subject line RSU Standardization or
Connected Signalized Intersection. Project
progress and updates can be found at
www.ite.org/technical-resources/standards.

How to Take Part in CV and
ITS Standards Training:
Please refer to the ITE Technical Resources
webpage and review the ITS Professional
Capacity Building section at https://
www.ite.org/technical-resources/
topics/transportation-education.

14

Apri l 2020

i te j o urn al

Beginning in 2019, USDOT has designated ITE as a lead organization to work cooperatively
with the other SDOs in developing the first generation of standards products related to connected vehicles (CV). These Standards and Recommended practices accelerate Cooperative
Automation deployments across the nation, and enable interoperability between infrastructure, automotive sector, and mobile solutions sectors.
Above mentioned efforts help ITE's membership develop an understanding of CV through
engagement with Connected Vehicle groups. ITE members also get an opportunity to interact
with automotive, and mobile solutions sectors and in understanding each other needs. ITE
membership is expected to be part of developing operational guidelines through consensus
building and standards development.
Following sections provide a brief overview of the two CV standards projects underway,
which are RSU (Roadside Unit) Standardization and Connected Signalized Intersection Guideline development, being led by ITE and supported by the USDOT ITS Joint Programs Office. A
section on how to participate and follow the effort follows.

RSU (Roadside Unit) Standardization
The USDOT ITS Joint Programs Office has initiated a new project, RSU (Roadside Unit) Standardization, to develop and publish an RSU standard that defines the key capabilities and
interfaces an RSU must support to ensure interoperability for state and local infrastructure
owner/operators (IOO). In cooperation with AASHTO, NEMA, SAE, and IEEE, ITE is inviting
stakeholders representing public and private sectors, as well as individuals, to participate.
The scope of the proposed standard is to incorporate relevant user needs, requirements,
and design elements of RSUs defined in the RSU Specification 4.1, and NTCIP 1218 Object
Definitions for RSUs, and subsequently validate it through outreach to the real-world RSU
deployments such as the Connected Vehicle Pilots programs and the Signal Phase and Timing
(SPaT) Challenge. Stakeholders should anticipate up to 15 web-enabled conference calls and
three face-to-face meetings within the United States, during years 2020-2021.

Connected Signalized Intersection (CI) Guidelines
The USDOT ITS Joint Programs Office has initiated another CV standards and guidelines project
for a connected signalized intersection. Stakeholders representing public and private sectors
as well as individuals are invited to participate.
A connected signalized intersection is defined as an infrastructure system that broadcasts
signal, phase and timing (SPaT), mapping information, and position correction data to vehicles.
The project is meant to complement the RSU Standardization effort and have a balanced list
of stakeholders representing infrastructure, automotive sector, and smart mobility to ensure
consistency and interoperability while receiving timely input from the industries mentioned.
The project's purpose is to develop and publish a Connected Signalized Intersection guideline that addresses ambiguities and gaps identified in CV and SPaT deployments. This project
scope is to ensure that future CV and SPaT deployments are interoperable across the United
States, especially for automated transportation systems. The first version of this guideline
focuses on harmonizing existing SPaT, using the USDOT sponsored Cooperative Automated
Transportation Clarifications for Consistent Implementations (CCIs) To Ensure National Interoperability Connected Signalized Intersections as a starting point. itej


http://www.ite.org/technical-resources/standards https://www.ite.org/technical-resources/topics/transportation-education/ https://www.ite.org/technical-resources/topics/transportation-education/ https://www.ite.org/technical-resources/topics/transportation-education/

ITE Journal - April 2020

Table of Contents for the Digital Edition of ITE Journal - April 2020

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