COMMISSION 
AGENDA MEMORANDUM                        Item No.          8c 
ACTION ITEM                            Date of Meeting      March 23, 2021 
DATE:     February 17, 2021 
TO:        Stephen P. Metruck, Executive Director 
FROM:    Wendy Reiter, Director, Aviation Security 
Wayne Grotheer, Director, Aviation Project Management 
SUBJECT:  Exit Breach Control Replacement Project Authorization (CIP #C801159) 
Amount of this request:               $4,081,000 
Total estimated project cost:          $4,181,000 
ACTION REQUESTED 
Request Commission authorization for the Executive Director to (1) develop, advertise, and
execute an alternative public works delivery using the Building Engineering Systems process, (2)
execute a five-year maintenance service and training agreement for the Exit Breach Control 
Replacement Project at Seattle-Tacoma International Airport, and (3) utilize Port crews, for an
estimated total project cost of $4,181,000. 
EXECUTIVE SUMMARY 
Exit lane automation and physical breach control is part of Seattle-Tacoma International Airport's 
(SEA) multi-layered security approach and is a critical component to securing the passenger
concourses and preventing unauthorized access to the secured areas. This Exit Breach Control
Replacement Project will replace the existing automated Exit Lane Breach Control System (aka
exit lanes) at the Concourse B security exit to the Main Terminal at SEA. The existing exit lanes 
have reached their end of useful life. The manufacturer no longer fabricates parts for this model.
The exit lanes have been kept operational using spare parts remaining from an earlier project; 
however, most spare parts have been exhausted. Due to replacement component obsolescence,
staff has not been able to restore service to one of the three laneswhich remains closed. 
This project will be delivered using the alternative public works Building Engineering Systems 
(BES) process which will combine the procurement of the exit lane technology with the design 
and construction of the necessary Airport infrastructure connections including communications,
electrical, and security systems among others. Additionally, this procurement will also include a
separate contract to purchase a five-year manufacturer maintenance service agreement and
factory training. As the training and maintenance are required to be completed by the selected
manufacturer, it is essential that the service agreement and training component be procured at
the same time. The total costs associated with the maintenance service agreement and training

Template revised January 10, 2019.

COMMISSION AGENDA  Action Item No. 8c                                   Page 2 of 5 
Meeting Date: March 23, 2021 
is estimated at $520,000 over five years. Funding for the maintenance and training contract will
be included in the Aviation Division operating budget and approved through the 2022 Aviation
Division expense budget approval process. 
JUSTIFICATION 
A full replacement is necessary to maintain security at the Concourse B exit lane corridor. Exit
lane automation and physical breach control is part of SEA's multi-layered security approach and
is a critical component to securing the passenger concourses. 
As part of the alternatives analysis, staffing this exit with guards was considered and compared
to the preferred alternative of proceeding with this project. Manually staffing this exit is not
practicable as it introduces an increased potential for security breaches as a result of human error 
or fatigue when compared to the security of the one-way automated exit lanes. A cost and critical
factors comparison can be found within the "Alternatives and Implications Considered" section
below. 
Diversity in Contracting 
There will be a 7% women-and minority business enterprise (WMBE) aspirational goal for this
BES design and construction contract. 
DETAILS 
The first step for this project will be to procure a BES team composed of a designer, equipment
vendor and construction contractor. In order to complete this procurement a Request for
Proposals document set will be prepared including a basis of design that will document existing
conditions and applicable design standards to be employed. 
Scope of Work 
The project scope includes: 
(1)   A qualifications-based procurement of the exit lane system. 
(2)   Demolition and removal of the existing exit lanes. 
(3)   Installation of the new exit lanes along with necessary utilities and service connections 
required to integrate the new exit lanes into Port systems. 
(4)   Testing to Port of Seattle Security and Police Department and Federal Transportation
Security Administration standards. 
(5)   During construction, the existing service animal relief area may be relocated. 



Template revised June 27, 2019 (Diversity in Contracting).

COMMISSION AGENDA  Action Item No. 8c                                   Page 3 of 5 
Meeting Date: March 23, 2021 
Schedule 
BES Team Procurement start                 Q2 2021 
Design start                                    Q4 2021 
Construction start                             Q1 2022 
In-use date                                    Q3 2022 
Cost Breakdown                                  This Request and 
Total Project 
Design                                                    $720,000 
Construction                                             $3,461,000 
Total                                                         $4,181,000 
ALTERNATIVES AND IMPLICATIONS CONSIDERED 
During the alternatives analysis it became evident that only two (2) options were practicable 
solutions to address the failing infrastructure and provide an adequate level of security. The
project team evaluated the option of blocking the exit (with the installation of a permanent
barricade) upon the next full mechanical failure. Under this alternative, passengers would be
rerouted to the next available concourse exit and the existing exit corridor would be walled off.
This "do-nothing" approach was eliminated as it was not a sensible alternative for the traffic
levels expected to return to the airport. As such, only two alternatives were evaluated further. 
Alternative 1  Upon full mechanical failure, remove the existing automated doors and staff the
exit with guards. 
Cost Implications: $4,565,000 (net present value of total cost of ownership comprised of wages,
benefits, etc. over a 10-year duration.) 
Pros: 
(1)   This alternative would not require a capital investment. 
(2)   This could be prepared more quickly than a capital project. 
(3)   Generates six full-time security guard positions. 
Cons: 
(1)   This option does not provide a long-term solution to egress at B gates. 
(2)   This alternative would incur increased labor costs to manually staff the exit. 
(3)   This alternative would increase the potential of security breaches as a result of human
error and fatigue when compared to the security of automated exit lanes. 
(4)   A rolldown security gate may be required. Costs associated with this are not included in
the cost presented above. 
This is not the recommended alternative. 


Template revised June 27, 2019 (Diversity in Contracting).

COMMISSION AGENDA  Action Item No. 8c                                   Page 4 of 5 
Meeting Date: March 23, 2021 
Alternative 2  Replace the automated exit lanes. 
Cost Implications: $4,996,000 net present value of total cost of ownership comprised of
$4,181,000 for capital costs and $815,000 for operating and maintenance costs. 
Pros: 
(1)   Physical barrier system for security reduces the risk of physical breaches and that risk
reduction offsets the higher NPV costs. 
(2)   Provision of a secure passenger egress at Concourse B. 
(3)   Installation of a new exit lane system that could be properly maintained. 
(4)   No additional long-term staffing needs or costs. 
Cons: 
(1)   The Concourse B exit would be closed for a longer period of construction. 
(2)   The higher NPV cost compared to Alternative 1. 
This is the recommended alternative. 
FINANCIAL IMPLICATIONS 
Cost Estimate/Authorization Summary              Capital        Expense           Total 
COST ESTIMATE 
Original estimate                                   $100,000                0        $100,000 
Current change                                $4,051,000        $30,000      $4,081,000 
Revised estimate                                $4,151,000         $30,000      $4,181,000 
AUTHORIZATION 
Previous authorizations                            $100,000               $0        $100,000 
Current request for authorization                $4,051,000         $30,000      $4,081,000 
Total authorizations, including this request       $4,151,000         $30,000      $4,181,000 
Remaining amount to be authorized                    $0             $0             $0 
Annual Budget Status and Source of Funds 
This project, CIP C801159, was included in the 2021-2025 capital budget and plan of finance with
a budget of $100,000 which was intended to fund project definition and preliminary design. A
budget increase of $4,051,000 was transferred from the Aeronautical Reserve CIP (C800753)
resulting in zero net change to the Aviation capital budget. The funding source will be airport
development fund (ADF) and future revenue bonds. 



Template revised June 27, 2019 (Diversity in Contracting).

COMMISSION AGENDA  Action Item No. 8c                                   Page 5 of 5 
Meeting Date: March 23, 2021 
Financial Analysis and Summary 
Project cost for analysis              $4,181,000 
Business Unit (BU)                  Terminal Building 
Effect on business performance     NOI after depreciation will increase due to inclusion of
(NOI after depreciation)             capital (and operating) costs in airline rate base. 
IRR/NPV (if relevant)                The preferred alternative has the higher NPV for the total
cost of ownership; however, the physical security barrier 
system reduces the risk of breaches and that risk
reduction offsets the higher NPV costs. 
CPE Impact                       $.02 in 2023 
Future Revenues and Expenses (Total cost of ownership) 
The total costs associated with the maintenance service agreement and training will be finalized
as a part of the system procurement but has been estimated at $526,000 over the first five years. 
Funding for the maintenance and training contract will be included in the Aviation Division
operating budget and approved through the 2022 Aviation Division expense budget approval
process. 
ADDITIONAL BACKGROUND 
These doors (and salvaged spare parts) are the legacy of an earlier project that intended to install
exit lanes at all SEA concourse security exits but was cancelled in 2013. As such, only the doors
at B-gates were installed. This installation was both a pilot program in exit automation for SEA
and was an initial prototype from the current manufacturer. 
ATTACHMENTS TO THIS REQUEST 
(1)   Presentation slides 
PREVIOUS COMMISSION ACTIONS OR BRIEFINGS 
None. 






Template revised June 27, 2019 (Diversity in Contracting).