PORT OF SEATTLE 
MEMORANDUM 
COMMISSION AGENDA               Item No.      7c 
STAFF BRIEFING 
Date of Meeting    August 23, 2016 
DATE:    August 4, 2016 
TO:     Ted Fick, Chief Executive Officer 
FROM:    Elizabeth Leavitt, Senior Director, Environment and Sustainability 
Tom Hooper, Senior Planner 
SUBJECT:  Sustainable Airport Master Plan (SAMP) Briefing 

SYNOPSIS 
This briefing provides an update on SAMP planning. Airport master plans begin with a wide
range of alternative concepts, and generally conclude with one or two alternatives which are
carried into environmental review along with a "no action" alternative. At this time, staff is
presenting results of on-going analysis and not making a recommendation to Commission on a
final preferred alternative(s). As the SAMP team moves forward with additional analysis to
solidify a recommendation for the Commission and prepare for environmental review, we will
continue to work with internal and external stakeholders to flesh out options in other functional
areas, such as airport support facilities and transportation related issues. 

SUMMARY OF SAMP PROGRESS 
The July SAMP planning update to Commission included a pros and cons discussion of two gate
expansion concepts (Three pier gate expansion vs U-shaped gate expansion) within the overall
development Concept 4 which was presented to commission in April. Concept 4 includes three
key plan elements which are needed to meet all program requirements and century agenda goals:
1) additional aircraft accessible land in the South Aviation Support Area (SASA) for cargo
facilities and aircraft maintenance; 2) hardstands south and north of existing and future gates for
holding aircraft during peak operating hours and  parking aircraft overnight;  and 3)
accommodation of widebody aircraft on Concourse B to accommodate growth in international
activity. Options for accommodating commercial development in SASA along with cargo and
aircraft maintenance facilities were also presented to Commission and Port staff has since met
with the City of SeaTac staff per Commission direction to discuss those options. The July
briefing also included discussion of a 3-D model that sets the geometry of roadway
improvements, a landside people mover and relocation of the Airport Rescue and Firefighting
(ARFF) station in the context of the U-Shape gate expansion and new north terminal.
This briefing reports on ongoing work to develop an implementation plan and determine a
preferred development alternative. The briefing provides and overview of the implementation
plan and a detailed description of the sequence of projects involved in the first of two phases of
development, as well as preliminary output from the SAMP program cost model expressed as a
broad range of potential program cost.  The purpose of an implementation plan is to: 1)
determine a logical sequence of projects to deliver needed capacity thru full build-out of airport
Template revised May 30, 2013.

COMMISSION AGENDA 
Ted Fick, Chief Executive Officer 
August 4, 2016 
Page 2 of 3 
facilities; 2) target capital investment to minimize throwaway; 3) broadly define project scopes,
purposes, and timing to inform environmental review; and 4) build a program cost model to
inform a plan of finance. The implementation plan approach centers on sequencing projects to
add gate and hardstand capacity as soon as possible given recent dramatic growth in passenger
operations, lack of gate capacity and development constraints at Sea-Tac. The first phase of the
implementation plan involves: 1)  roadway work and relocation of facilities such as the ARFF
station, fuel rack, and Port maintenance to clear areas for gate and hardstand expansion; 2)
construction of a new north terminal and people movers to connect passenger on the landside and
airside; 3) construction of a Port maintenance campus on the west side of the airfield to clear
areas for construction of the South Aviation Support Area (SASA) and the north hardstand; and
4) construction of the SASA platform & aircraft bridge and aircraft maintenance & cargo
facilities in SASA to clear areas for south hardstand construction, additional gate expansion, and
redevelopment of cargo facilities in the north cargo area. 
The upcoming September Commission briefing will report on refinements to the overall
implementation plan including: 1) an update to the program cost model as projects become better
defined and sequenced; 2) a detailed description of the sequence of projects in phase two of the
implementation plan; and 3) a cargo demand/capacity analysis tracking cargo capacity over the
span of the implementation plan and ability to accommodate demand under three growth
scenarios (forecasted growth, Century Agenda growth, and accelerated Century Agenda growth).
The briefing will also include an update on other ongoing work such as providing planning
support to the SAMP environmental review and determining a recommendation for airside
improvements. The SAMP team will continue to coordinate with the FAA, the airlines, and
other regional and local stakeholders as we work to refine the recommended development option. 

BACKGROUND 
In September 2012, the Port Commission approved scope and budget of $6,000,000 for the
creation of a Sustainable Airport Master Plan (SAMP). Since October of 2014, staff has briefed
the Commission seven times on SAMP planning progress, including: forecast results and
challenges associated with planning to accommodate forecast activity; and preliminary options
for terminal, landside and cargo development.
The master plan process provides an opportunity to take a comprehensive assessment of facilities
capacity and forecasted demand over 5-, 10-, and 20-year timeframes. Airport master plans are
typically prepared approximately every 10 years. The last formal master plan for Sea-Tac was
developed in the mid-1990s and was focused primarily on the third runway. 
The primary objective of an airport master plan is to provide a roadmap for the phased
redevelopment/expansion of facilities, maintaining a balance of capacity in all key functional
areas. Overall airport system capacity is limited by functional areas with the least capacity. 
Terminal and landside facilities are generally balanced to the fixed capacity of the airfield.
Through alternatives development and evaluation, the SAMP will culminate in a capital
improvement program and plan of finance that will deliver cost-effective projects to remove
capacity pinch points, increase efficiency, integrate sustainability considerations, and provide a
high level of service to airport customers.

COMMISSION AGENDA 
Ted Fick, Chief Executive Officer 
August 4, 2016 
Page 3 of 3 
ATTACHMENTS TO THIS BRIEFING 
PowerPoint presentation 
PREVIOUS COMMISSION ACTIONS OR BRIEFINGS 
July 12, 2016 - Commission Briefing: "Sustainable Airport Master Plan (SAMP)
Planning Update" 
April 12, 2016 - Commission Briefing: "Sustainable Airport Master Plan (SAMP)
Planning Update" 
January 26, 2016 - Commission Briefing: "Sustainable Airport Master Plan (SAMP)
Planning Update" 
September 8, 2015 - Commission Briefing: "Sustainable Airport Master Plan (SAMP)
Planning Update" 
April 28, 2015 - Commission Briefing: "Sustainable Airport Master Plan (SAMP)
Planning Update" 
March 24, 2015 - Commission Briefing: "Briefing on Sea-Tac Cargo as part of the
Sustainable Airport Master Plan (SAMP)" 
January 27, 2015 - Commission Briefing: "Sustainable Airport Master Plan (SAMP)
Planning Update" 
October 7, 2014 - Commission Briefing: "Sustainable Airport Master Plan (SAMP)
Forecast and Facilities Challenges" 
February 28, 2014 - Commission authorization to amend the existing Sustainable
Airport Master Plan (SAMP) service agreement with Leigh Fisher Associates for IAF-
related planning tasks for an increase of $3,650,000 and a new total contract amount of
$9,650,000 
September 5, 2012 -  Commission authorization for SAMP development and to
advertise and execute a contract for consulting services for the SAMP, with a total
estimated value of $6 million 
August 14, 2012 - Commission deferred consideration of a request to approve funding
for the Sustainable Airport Master Plan (SAMP) 
June 27, 2012 - Commission Briefing: "Terminal Development Challenges"