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Suggested Citation:"Summary." National Academies of Sciences, Engineering, and Medicine. 2020. Guidebook for Developing a Zero- or Low-Emissions Roadmap at Airports. Washington, DC: The National Academies Press. doi: 10.17226/25677.
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Suggested Citation:"Summary." National Academies of Sciences, Engineering, and Medicine. 2020. Guidebook for Developing a Zero- or Low-Emissions Roadmap at Airports. Washington, DC: The National Academies Press. doi: 10.17226/25677.
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Suggested Citation:"Summary." National Academies of Sciences, Engineering, and Medicine. 2020. Guidebook for Developing a Zero- or Low-Emissions Roadmap at Airports. Washington, DC: The National Academies Press. doi: 10.17226/25677.
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Page 11
Suggested Citation:"Summary." National Academies of Sciences, Engineering, and Medicine. 2020. Guidebook for Developing a Zero- or Low-Emissions Roadmap at Airports. Washington, DC: The National Academies Press. doi: 10.17226/25677.
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Page 11

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  1    Summary  Objective of Guidebook  This Guidebook provides airports with the information and resources needed to create a zero or low  emissions roadmap.1 The Guidebook covers all steps of roadmap development, from start to finish,  using conceptual diagrams, examples, best practices, and links to external tools and resources. While  the main focus of this Guidebook is airport‐controlled greenhouse gas (GHG) emissions, it provides  discussion about airport‐influenced emissions from airlines, concessionaires, and passengers.  Throughout the Guidebook, reductions in local air pollution are discussed as co‐benefits.   Whereas other guidebooks and reference material provide airports with information on emissions  mitigation and management (for example, FAA 2019; ACRP 2009b; ACI 2009), this Guidebook articulates  steps for creating an airport‐specific emissions roadmap.  Examples of questions addressed by this Guidebook include:   How can airports make a business case to pursue zero or low emissions targets? [Chapter 1]    How can airports catalyze internal and external stakeholders into developing zero emissions  goals or targets? [Chapter 2]   How should airports set goals and target years in route to zero or low emissions targets?  [Chapter 3]   How should airports evaluate the technology‐fuel mixes needed to achieve a given emissions  target? [Chapter 4]   What are examples of innovative airport programs that can achieve deep emissions reductions?  [Chapters 2–4]   What are the pros and cons of various funding options for emissions reductions? [Chapter 5]   How can airports effectively monitor their emissions reduction programs? [Chapter 6]   Even if an airport is not ready to develop a full emissions roadmap, the Guidebook is still useful. The  Guidebook is written in a scalable fashion, so that users can pick‐and‐choose strategies and content that  suit their needs. Airports should focus on near‐term, cost‐effective strategies to build momentum over  time. With enough successes, an airport may be ready to develop an emissions roadmap.        Audience for Guidebook  This Guidebook is intended primarily for airports, of all sizes and global regions, including small,  medium, and large hub commercial service, reliever, and GA, that are interested in developing a zero or  low emissions roadmap. Even airport without deep interest in long‐term emission reductions can benefit  from content of the Guidebook. The target audience for this Guidebook includes:    Airport administrators and decision makers. The Guidebook provides the information  necessary to pursue zero or low emissions targets and to consider the impact of these targets  within the broader goals of the airport and associated stakeholders.                                                                1 While noise can be considered an “emission” as well, only air quality and GHG emissions are within the scope of  this Guidebook. 

  2     Airport financial staff. The Guidebook provides those responsible for the financial and  budgetary aspects of airport projects, operations, and maintenance with the information  required to evaluate the costs and benefits of a zero or low emissions initiative including  required long‐term investment needs.    Airport technical staff including airport engineers and sustainability personnel. The Guidebook  assists technical personnel with evaluating infrastructure projects, building efficiencies, and  implementing operational changes that ensure long‐term sustainability and the cost‐ effectiveness of airport operations while also promoting the airport’s stated emissions reduction  goals.   Role of Roadmaps  Airports worldwide are setting aggressive zero or low  emissions targets. To meet these targets, airports are  deploying new strategies, adopting innovative financing  mechanisms, and harnessing the collective influence of  voluntary emissions and reporting programs like Airport  Carbon Accreditation (ACA), Science‐Based Targets (SBTs),  The Climate Registry (TCR), Global Reporting Initiative  (GRI), and others. In tandem, new and affordable zero or  low emissions technologies are rapidly becoming available  at airports. Vehicle fleet electrification is now possible for a  wide variety of vehicle types. Energy‐efficient buildings,  facilities, and end uses are providing short paybacks and  high return on investment. Renewable resources such as  solar, wind, and geothermal are often the lowest‐cost  electricity option for airports.   The investments needed to support zero or low emission technologies at airports often require long  planning horizons and close coordination between many stakeholders. A roadmap is an effective tool for  fulfilling these needs. Roadmaps are public‐facing documents that support strategic and long‐range  planning by matching short‐term and long‐term goals with specific technology solutions. Yet, a roadmap  is more than just a plan for organizing and sequencing initiatives. It is a signal to the broader set of  airport investors and partners that an airport takes climate change seriously. This signal has real  financial benefits, as discussed in Section 1.3.   Organization of Guidebook   This Guidebook is organized into five overarching steps that correspond to the steps needed to create  an airport‐specific roadmap to a zero or low emissions target.    Chapter 1 lays out the basic knowledge and concepts to begin the roadmapping process,  describes how to create a compelling business case, and provides important context.    Chapter 2 describes effective engagement strategies that encourage buy‐in for the roadmap  from internal and external stakeholders.    Chapter 3 reviews steps for setting goals, baselines, and targets.   A Global Trend  Setting aggressive emission reduction  targets at airports is part of a broader  global trend. Eight countries and one  province have pledged to eliminate  economy‐wide emissions in the  coming decades, while other  countries and cities have announced  plans to eliminate emissions in  specific sectors or to establish “low  emission zones.” A growing number of  cities (such as C40 Cities), universities,  and business have also announced  carbon neutrality targets for 2050.  

  3     Chapter 4 describes how to prioritize emissions reduction strategies.    Chapter 5 discusses funding opportunities and mechanisms.    Chapter 6 reviews key steps for monitoring, outreach, and reporting.   The appendices provide a glossary of terms, frequently asked questions, example graphics for zero or  low emissions roadmaps, recommended future research needs, and example roadmaps.     How to Use this Guidebook  The diagram on the following page depicts a step‐by‐step process for creating an airport‐specific roadmap. All  steps in the diagram should be considered iterative—each are linked and should be re‐visited periodically. 

       

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Airports worldwide are setting aggressive zero- or low-emissions targets. To meet these targets, airports are deploying new strategies, adopting innovative financing mechanisms, and harnessing the collective influence of voluntary emissions and reporting programs. In tandem, new and affordable zero- or low-emissions technologies are rapidly becoming available at airports.

The TRB Airport Cooperative Research Program's pre-publicaton draft of ACRP Research Report 220: Guidebook for Developing a Zero- or Low-Emissions Roadmap at Airports covers all steps of roadmap development, from start to finish, using conceptual diagrams, examples, best practices, and links to external tools and resources. While the main focus of this Guidebook is airport‐controlled greenhouse gas (GHG) emissions, it provides discussion about airport‐influenced emissions from airlines, concessionaires, and passengers.

Whereas other guidebooks and reference material provide airports with information on emissions mitigation and management (for example, the Federal Aviation Administration’s Airport Carbon Emissions Reduction, ACRP Report 11: Guidebook on Preparing Airport Greenhouse Gas Emissions Inventories, and the Airport Council International’s Guidance Manual: Airport Greenhouse Gas Emissions Management), this Guidebook articulates steps for creating an airport‐specific emissions roadmap.

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