Network Working Group F. Templin, Ed.
Internet-Draft Boeing Research & Technology
Intended status: Informational March 11, 2019
Expires: September 12, 2019
Urban Air Mobility Implications for Intelligent Transportation Systems
draft-templin-ipwave-uam-its-00.txt
Abstract
Urban Air Mobility concerns the introduction of manned and unmanned
aircraft within urban environments, while Intelligent Transportation
Systems have traditionally considered only terrestrial vehicles
operating on city streets and highways. This document considers the
implications for introduction of low-altitude aircraft within urban
environments operating in harmony with ground transportation.
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Table of Contents
1. Introduction . . . . . . . . . . . . . . . . . . . . . . . . 2
2. Terminology . . . . . . . . . . . . . . . . . . . . . . . . . 3
3. Applicability . . . . . . . . . . . . . . . . . . . . . . . . 3
4. Implementation Status . . . . . . . . . . . . . . . . . . . . 3
5. IANA Considerations . . . . . . . . . . . . . . . . . . . . . 3
6. Security Considerations . . . . . . . . . . . . . . . . . . . 4
7. Acknowledgements . . . . . . . . . . . . . . . . . . . . . . 4
8. References . . . . . . . . . . . . . . . . . . . . . . . . . 4
8.1. Normative References . . . . . . . . . . . . . . . . . . 4
8.2. Informative References . . . . . . . . . . . . . . . . . 4
Author's Address . . . . . . . . . . . . . . . . . . . . . . . . 4
1. Introduction
Urban Air Mobility (UAM) concerns the introduction of manned and
unmanned aircraft within urban environments. NASA has initiated a
program known as the Urban Air Mobility grand challenge with the goal
to promote public confidence in UAM safety and facilitate community-
wide learning while capturing the public's imagination [UAM].
Autonomy will play a pivotal role in the acceptance of low-altitude
operations for aerial vehicles operating in harmony with traditional
ground transportation and pedestrian traffic. The UAM vision
therefore builds on evolving works on Unmanned Air Systems (UAS),
including the NASA UAS Traffic Management (UTM) service model [UTM].
Use cases for autonomous aircraft in the UAM vision are endless, and
include personal air vehicles, flying taxis, parcel delivery, law
enforcement and countless others. Major industry leaders such as
Airbus [AIRBUS] and Boeing [BOEING] have accordingly begun to
articulate their UAM strategies. Programs such as Uber Elevate
[UBER] anticipate deployment as early as within the next 2-5 years.
With the advent of the UAM vision and its related initiatives,
questions arise as to how the new model will be harmonized with the
existing terrestrial mobility environment. Directions for
modernizing terrestrial mobility are emerging in programs such as the
US Department of Transportation's Intelligent Transportation Systems
[ITS] and anticipate an increasing role for Vehicle to Vehicle (V2V)
and Vehicle to Infrastructure (V2I) communications. The IETF
recognizes this need and has formed the IP Wireless Access in
Vehicular Environments (IPWAVE) working group with charter to produce
a document that will specify the mechanisms for transmission of IPv6
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datagrams [RFC8200] over dedicated short-range wireless
communications media.
This document anticipates a need to provide a unified V2V and V2I
service for all urban mobility agents, including both terrestrial and
airborne. Urban air vehicles will employ Vertical Takeoff And
Landing (VTOL) and will operate at altitudes below 400 feet, such
that coordinations with terrestrial vehicles will be inevitable and
commonplace. This work therefore proposes that urban air vehicles
also employ a short-range V2V / V2I communications capability using
the same types of wireless networking gear used in the terrestrial
domain (e.g., DSRC, C-V2X, etc.).
As stated by the Boeing CEO in a January 23, 2019 press release,
think of the urban mobility landscape as evolving from a two
dimensional to a three dimensional environment. Vehicles both on the
ground and in the air will therefore need to coordinate with one
another on a V2V and V2I basis even when supporting communications
infrastructure such as cell towers are unavailable or otherwise too
congested to support realtime exchanges. The ipwave working group is
therefore advised to consider the rapidly emerging and inevitable
Urban Air Mobility future.
2. Terminology
Terms such as Intelligent Transportation Systems (ITS), Urban Air
Mobility (UAM), Unmanned Air Systems (UAS), UAS Traffic Management
(UTM) and many others apply to the emerging urban mobility landscape.
IETF keywords per [RFC2119] are not applicable within the scope of
this document.
3. Applicability
Urban Air Mobility and Intelligent Transportation System concepts
apply within all major urban areas worldwide.
4. Implementation Status
Early prototyping and testing are underway.
5. IANA Considerations
This document introduces no IANA considerations.
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6. Security Considerations
Communications networking security is necessary to preserve the
confidentiality, integrity and availability necessary for V2V and V2I
coordinations.
7. Acknowledgements
Discussions on the IETF ipwave list (its@ietf.org) helped motivate
this document.
8. References
8.1. Normative References
[RFC2119] Bradner, S., "Key words for use in RFCs to Indicate
Requirement Levels", BCP 14, RFC 2119,
DOI 10.17487/RFC2119, March 1997,
<https://www.rfc-editor.org/info/rfc2119>.
[RFC8200] Deering, S. and R. Hinden, "Internet Protocol, Version 6
(IPv6) Specification", STD 86, RFC 8200,
DOI 10.17487/RFC8200, July 2017,
<https://www.rfc-editor.org/info/rfc8200>.
8.2. Informative References
[AIRBUS] "https://www.airbus.com/innovation/
Urban-air-mobility-the-sky-is-yours.html", November 2018.
[BOEING] "http://www.boeing.com/NeXt/common/docs/
Boeing_Future_of_Mobility_White%20Paper.pdf", March 2019.
[ITS] "https://www.its.dot.gov/", November 2018.
[UAM] "https://www.nasa.gov/uamgc", October 2018.
[UBER] "https://www.uber.com/us/en/elevate/", November 2018.
[UTM] "https://utm.arc.nasa.gov/index.shtml", March 2019.
Author's Address
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Fred L. Templin (editor)
Boeing Research & Technology
P.O. Box 3707
Seattle, WA 98124
USA
Email: fltemplin@acm.org
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