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Port of Seattle Commission

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Ground Transportation Principles and
Goals Policy Directive

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As Adopted/Amended
Month D, YYYY

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Document last updated Month D, YYYY

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SECTION 1. Purpose.
This policy directive establishes guidance on ground transportation at the Seattle-Tacoma
International Airport (Sea-Tac) including principles, goals, monitoring, and reporting; creates an
Annual Ground Transportation Progress Report; affirms airport commute-trip-reduction (CTR)
goals; and establishes a transportation management association.
SECTION 2. Definitions.
When used in this policy directive, the following words and phrases shall have the meanings
given below unless the context in which they are included clearly indicates otherwise:
"Commute-trip reduction (CTR)" refers to the regulations developed under the Washington
Administrative Code 468-63-010, with the intent to reduce automobile-related air pollution,
traffic congestion, and energy use through employer-based programs that encourage the use of
alternatives to single occupant vehicles travelling during peak traffic periods for the commute
trip.
"Ground transportation" means non-aviation activities that relate to travelling to and from the
airport.
"Scope 3 greenhouse gas (GHG) emissions" refers to the GHG Protocol Corporate Standard that
classifies a company's GHG emissions into three 'scopes'. Scope 1 emissions are direct
emissions from owned or controlled sources. Scope 2 emissions are indirect emissions from the
generation of purchased energy. Scope 3 emissions are all indirect emissions (not included in
scope 2) that occur in the value chain of the reporting company, including both upstream and
downstream emissions.
SECTION 3. Scope and Applicability.
This policy directive applies to all activities related to ground transportation to and from SeaTac.
SECTION 4. Responsibilities.
The Executive Director shall engage in the following activities in pursuit of this policy directive,
either directly or by appropriate delegation of authority:
A. Ensure the Ground Transportation principles are applied to decisions on ground
transportation at the appropriate time and manner.
B. Shall strive to achieve the goals enumerated below.
C. Provide an Annual Ground Transportation Report to the Commission.

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SECTION 5. Policy.
A. Ground Transportation Principles. The Federal Aviation Administration regulatory
guidance directs an airport fee and rental structure designed to make the airport as
self-sustaining as possible. In this context, self-sustaining is generally interpreted as
applying fair market value commercial rates under the particular airport's
circumstances. This reduces the airport's reliance on federal funds and local tax
revenues. In developing recommendations to the Commission governing ground
transportation, Port staff shall, alongside the regulatory guidance, use the following
guiding principles in managing ground transportation activities at Sea-Tac.
(1) Reduce passenger and commuter trips and lower carbon emissions to
achieve Port GHG-reduction goals and reduce negative community impacts.
(2) Reduce airport drive and roadway congestion, improve ease of access to the
airport, increase transportation options, and improve the customer
experience.
(3) Support equity considerations by promoting living wage jobs, equal business
opportunities, and accessibility for people with disabilities.
B. Ground Transportation Goals. Port staff shall apply the principles in Section 5(A) and
implement strategies to achieve the following ground transportation goals.
(1) Reduce curbside private vehicle pickup/drop off from 41 percent to 30
percent of mode share by 2030.
(2) Reduce Scope 3 GHG emissions from passenger vehicles to 50 percent of
2007 levels by 2030.
(3) Maintain a maximum 15-minute travel time from the airport clock tower to
terminal curb or parking garage.
C. The Port is committed to airport employee CTR.
(1) The Commission affirms the Port's commitment to achieving the drive-alone rate
goal for Port employees at the Airport established by the CTR program currently
set by the City of SeaTac at a 65 percent drive-alone rate.
(2) The Port shall establish a Transportation Management Association (TMA) by
2020 and make membership available to all employers operating at the Airport.
The TMA will support commute reduction strategies that go beyond minimum
CTR requirements and facilitate efficient movement of employees to and from

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the Airport. The primary goal of the TMA will be to support the reduction of
drive-alone rates for employees that work at the Airport.
(3) The Port shall develop and implement parking management strategies and tools
to help achieve airport CTR goals, reduce drive-alone rates, and achieve the
desired mode split.
SECTION 6. Program Evaluation.
Port staff shall prepare and deliver to the Commission an Annual Ground Transportation
Progress Report by June 30th of each year that includes progress and recommendations to
better achieve the policy outlined in Sections 3 A. B. and C.
SECTION 7. Fiscal Implications.
Fiscal implications shall be reviewed by the Executive Director annually, at a minimum, to ensure
the implementation of the policy directive is adequately resourced and shall submit a budget
request as appropriate.
SECTION 8. Research Findings
A. Ground Transportation Access Study Report 7 - 20 - 18 (Table of Contents and
Executive Summary - full report available on request)
B. Ground Transportation Commission Study Session Briefing PowerPoint 7-10-2018
C. Ground Transportation Commission Briefing PowerPoint 9-25-2018

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