PORT OF SEATTLE 
MEMORANDUM 

COMMISSION AGENDA             Item No.      6c 
Date of Meeting     April 27, 2010 
DATE:    April 9, 2010 
TO:     Tay Yoshitani, Chief Executive Officer 
FROM:    Elizabeth Leavitt, Director, Aviation Planning and Environmental 
Tom Hooper, Planner, Aviation Planning 
SUBJECT:  Roadways Planning and Preliminary Design Services ID/IQ for Seattle-Tacoma
International Airport (Airport). 
This Request: $600,000                Source of Funds: Airport Development Fund 
ACTION REQUESTED: 
Request Port Commission authorization for the Chief Executive Officer to execute a professional
services Indefinite Delivery/Indefinite Quantity (ID/IQ) contract for roadways planning and
preliminary design services totaling $600,000 for one (1) year with the option to extend for up to
two (2) additional years. Work will be released through service directives as needed for a total
not to exceed $600,000. 
SYNOPSIS:
The ID/IQ Consultant will be selected through a competitive solicitation process and will assist
the Port in defining future roadways to 15% design in the area from the Airport terminal drives
to the intersection of S. 188th Street and 28th Avenue S. (known as the future South Airport 
Expressway). This area is the same area where Sound Transit plans to extend their Light Rail
project. As a result it is necessary for the Port to initiate planning and preliminary design to
reserve necessary corridors for Port roadways. Final design of future Port roadways would not
occur for several years. That final design effort is not within this ID/IQ scope of work; therefore
to ensure equity in competition if the competition occurs within 3 years after closeout of the
IDIQ contract, any consultants and subconsultants who successfully compete to perform the
work of this project will not be eligible to compete for the future follow-on final design.
The South Airport Expressway conceptual roadways are co-located with the planned extension 
of Light Rail Transit (LRT) in the area shown in Exhibit A  Study Area. Sound Transit is in the
process of procuring consultant services to assist their staff with 30% design of the LRT 
alignment from the Airport station to S. 200th Street. Further definition of the future South
Airport Expressway is needed to facilitate Sound Transit's design effort and to identify Airport
roadway elements to be included as part of the LRT design. Planning and preliminary design of
the South Airport Expressway will ensure that long-term airport facilities are compatible with the

COMMISSION AGENDA 
T. Yoshitani, Chief Executive Officer 
April 9, 2010 
Page 2 of 6 
near-term LRT construction. This coordination effort will also involve survey work to determine
the precise location of utilities and structures to inform the roadways and LRT design. 
This request continues a decade long beneficial cooperation between Sound Transit and the
Airport where the agencies have worked collaboratively to optimize funds for the public good.
Staff is currently negotiating a Terms Sheet with Sound Transit that will define Sound Transit's
financial participation in the roadways design portion of the IDIQ contract and Port services in
support of the roadways and LRT design. Staff anticipates that scope items directly related to
airport planning work to be completed prior to LRT design will be Port expense and that a 
portion of the costs associated with the roadways design will be reimbursed to the Port by Sound
Transit. 
The South Airport Expressway Roadways Planning and Preliminary Design project is not
included in the 2010-2014 capital budget and plan of finance. This is an unforeseen project
because it was not known at the time the budget was prepared that Sound Transit would decide
to extend Light Rail to South 200th Street. While the Port's portion of work was not specifically
budgeted in the 2010 operating budget, an Airport wide contingency was budgeted and approved
by the Commission to accommodate unforeseen items like this request. The funding source for
the scope of work is the Airport Development Fund. 
BACKGROUND: 
For over a decade the Airport future development plan has envisioned an access route to the
airport for users driving from the south. An estimated 30% of airport traffic originates from the
south; however those vehicles drive farther to enter the Airport from the north via I-5 and I-518
to reach the Airport expressway. As regional growth occurs, it is important to maintain a good
level of service on roadways entering the airport to avoid congestion, and reduce travel time and
vehicle emissions. It is also important to preserve the opportunity for a future south access route
to the Airport.
The only future route for vehicles accessing the Airport from the south follows a very narrow
corridor between the current airport drives and south 188th Street. This narrow corridor must
accommodate both the future roadway facilities and the near-term Sound Transit LRT alignment.
The LRT will be built first in the next few years, and design for it will be underway in the latter
half of this year. In order for the narrow corridor to accommodate both the LRT and the
opportunity for a southern access to the Airport, both must be planned simultaneously and
designed in concert with each other. Therefore, it is necessary to retain a planning and design
team to plan for the airport's needs and coordinate with the Sound Transit LRT alignment
designers.

COMMISSION AGENDA 
T. Yoshitani, Chief Executive Officer 
April 9, 2010 
Page 3 of 6 
PROJECT DESCRIPTION/SCOPE OF WORK: 
Project Statement: 
This project will determine the access and capacity needs of existing and future airport facilities 
in the study area and will revise the current conceptual roadways plan in support of a coordinated
design effort between the Port and Sound Transit. The project will culminate in 15% roadways
design and will facilitate 30% design of LRT facilities co-located in the study area. 15% design
of the South Airport Expressway will inform the column placement and alignment of the LRT
extension and identify roadway elements to be included in the LRT design. 
Prior to coordinating design efforts with the Sound Transit consultant design team and staff, the
Port Consultant will work with the Port to validate and refine the current plan for future
roadways in the study area. Roadways planning will require traffic analysis that considers access
and capacity needs for existing and future facilities. The Consultant will determine access and
development requirements for potential future facilities at a site currently occupied by the South 
Ground Transport Lot (South GT Lot) within the study area. In addition to potential future
facilities on the South GT Lot site, the future roadways design will need to consider access to
and from the airfield in the area of the existing airfield access and the Delta Airlines Cargo
building. The layout of future roadways will also need to accommodate local access at the
intersection of S. 188th Street and 28th Avenue S. and a South Access roadway that connects to
the future extension of SR 509 to I-5. 
The consultant will provide all required professional services for the South Airport Expressway
Roadways Planning and Preliminary Design contract on an ID/IQ basis throughout the term of
this Agreement. The specific scope of work to be accomplished for each phase of the project will 
be identified in service directives which will include a schedule and cost of services to be
provided by the Consultant.
Project Objectives: 
Facilitate the design of Sound Transit's LRT extension to S. 200th Street 
Ensure that future airport access and capacity requirements can be accommodated and are 
compatible with the near-term LRT construction 
Identify roadway elements to be included in the LRT design 
Scope of Work: 
The South Airport Expressway Roadways Planning and Preliminary Design will include the
following elements: 
Traffic Analysis  Demand/supply analysis, not to include computer simulation 
Future Facilities Requirements  Determine development footprint, access points and
assumptions regarding vehicle types and volumes accessing future facilities in the study area

COMMISSION AGENDA 
T. Yoshitani, Chief Executive Officer 
April 9, 2010 
Page 4 of 6 
Conceptual Roadways Planning  Develop roadways layout in consideration of alternative
LRT alignments and future facility needs 
Geotechnical Analysis - Concurrent with planning work described above - involves review of
existing documentation and assessment of proposed improvements, not to include additional
geotechnical borings. 
15% Roadways Design  Roadway alignment plans & profiles, grading plan, channelization
and intersection plans, traffic barrier plan, non-motorized access plan, bridge wall layout
plans, major utility relocation or protection measures, drainage concept plan, landscape
concept plan, preliminary illumination plan, preliminary signage plan to include sign
structure locations, work-zone traffic control strategy including phasing, sequencing plan that
demonstrates constructability, design decision summary, design documentation, design
deviation from applicable standards, sight distance analysis, vertical and horizontal clearance
analysis 
STRATEGIC OBJECTIVES: 
This project supports the Port's strategy to "Be a Catalyst for Regional Transportation Solutions"
with the key objective of "Ensure long-term effective access to airport and seaport facilities." 
This project also supports the Port's strategy to "Ensure Airport Vitality" and to "Exhibit
Environmental Stewardship through our Actions."
The project ensures Airport vitality by providing enhanced capacity and efficiency to the public
transit and roadways system. The project exhibits environmental stewardship by reducing
emissions through capacity enhancements. 
FINANCIAL IMPLICATIONS: 
The total estimated cost for services will not exceed $600,000. The contract will have a not-toexceed
dollar threshold. No work is guaranteed to the consultant, and the Port is not obligated to
pay the consultant until a service directive is executed.
Source of Funds 
The South Airport Expressway Roadways Planning and Preliminary Design project is not
included in the 2010-2014 capital budget and plan of finance. While the Port's portion of work
was not specifically budgeted in the 2010 operating budget, an Airport wide contingency was
budgeted and approved by the Commission to accommodate unforeseen items like this request.
The funding source for the scope of work is the Airport Development Fund. The portion of the 
costs associated with the roadways design that will be reimbursed by Sound Transit will be
determined through negotiation of a Terms Sheet prior to work being released to the Consultant
in service directives.

COMMISSION AGENDA 
T. Yoshitani, Chief Executive Officer 
April 9, 2010 
Page 5 of 6 
Financial Analysis Summary 
The coordination of the Port's South Access roadways with the extension of LRT to S. 200th 
Street will identify improvements that need to be built in contracts administered by Sound
Transit or accommodated in future improvements. This coordination effort should allow for the
future roadways and the planned LRT extension to be built efficiently by both agencies. The
scope of the interface between the roadway and LRT will be identified as part of the planning
study and design efforts, and should result in future cost avoidance.
The effect on business performance for the expenditures is neutral since the Airport contingency
was anticipated in the 2010 budget.
ECONOMIC IMPACTS: 
The extension of light rail to South 200th Street benefits the region by providing more extensive
LRT and commute options. The Port will benefit indirectly from the continued development of
the LRT system that provides more accessibility to the airport for both patrons and employees. 
ENVIRONMENTAL SUSTAINABILITY/COMMUNITY BENEFITS: 
Roadways planning and preliminary design of the South Airport Expressway will facilitate the 
extension of LRT alignment from the airport station to S. 200th Street which will potentially add
capacity to the public transit system; incentivizing a mode shift from private occupancy vehicles
and thereby reducing fuel consumption and air emissions. The future roadways will also enable
the efficient movement of vehicles and provide a connection to the planned extension of SR 509
to I-5 which will further reduce air emissions. 
TRIPLE BOTTOM LINE SUMMARY: 
This request facilitiates the expansion of public transit LRT and therefore benefits the local
community and the environment. In addition it reserves an alignment for a future roadway that
could shorten travel distance and lessen exhaust emissions to benefit the region and travelers
alike. It is an example of two governmental agencies working together in a cost effective and
coordinated manner for the greater public good.
PROJECT SCHEDULE: 
The following is a list of key milestone dates for the South Airport Expressway Roadways
Planning and Preliminary Design. 
Roadways Planning & Design Procurement            May-June 2010 
Roadways Planning Complete                    September 2010 
15% Roadways Design & 30% LRT Design Complete      January 2011

COMMISSION AGENDA 
T. Yoshitani, Chief Executive Officer 
April 9, 2010 
Page 6 of 6 
ALTERNATIVES CONSIDERED/RECOMMENDED ACTION: 
Alternative 1: Port ID/IQ procurrement for roadways planning and preliminary design services  
This option would allow Port staff to provide direct oversite to the planning and roadways design
to ensure that future airport facility access and capacity requirements can be effectively
accommodated in a design that is compatible with the near-term LRT construction. The ID/IQ
procurement method will allow the Port to define and release work in service directives. While
the type of work required and the goals of the project are known, the flexibility provided by the
ID/IQ process is needed because specific tasks and associated levels of effort will depend on the
results of planning work to be performed in the early stages of analysis. This is the
recommended alternative. 
Alternative 2:  Port Planning/Sound Transit Roadway design  This option would have the Port
acquire consultant services for only the planning aspects. The Sound Transit consultant design
team, with Port staff input, would develop the roadways design and evaluate elements to be
constructed in conjunction with the LRT. As in Alternative 1, the roadways design would be
developed concurrently with the LRT design, but the consultant team would be hired Sound
Transit. Under this option, the Port would have greater reliance upon Sound Transit for insuring
facilities meet the long-term objectives of the Port and would potentially have less direct
influence over the roadays design. This is not the recommended alternative. 
Alternative 3: Do n othing  Under this option, the LRT design would progress without further
roadways planning and design. This would put the Port at risk of not being able to provide 
additional roadway capacity and access to airport facilities in the future, or could make future
projects more costly. This is not the recommended alternative. 
PREVIOUS COMMISSION ACTION: 
No previous Commission actions have been taken on this project. 
ATTACHMENTS: 
Exhibit A  Study Area