COMMISSION 
AGENDA MEMORANDUM                        Item No.          8c 
ACTION ITEM                            Date of Meeting      October 23, 2018 
DATE:     October 17, 201810/17/2018October 16, 2018 
TO:        Stephen P. Metruck, Executive Director 
FROM:    James Schone, Director, Aviation Commercial Management 
Wayne Grotheer, Director, Aviation Project Management 
Matt Breed, Interim Chief Information Officer, Information & Communications Technology 
SUBJECT:  Parking Revenue Infrastructure (CIP #C800870) 
Amount of this request:              $10,946,171 
Total estimated project cost:         $22,898,000 
ACTION REQUESTED 
Request Commission authorization for the Executive Director  to (1) prepare design and
construction bid documents for the Parking Revenue Infrastructure project at Seattle-Tacoma
International Airport; (2) procure required hardware, software, vendor services, licensing, and
maintenance services for an Automated Parking Guidance System (APGS); (3) use port crews and
small works contracts for preconstruction activities; and (4) initiate pre-production setup and
configuration  of the APGS. The amount of this request is $10,946,171 bringing the total
authorization to $11,244,000. The total estimated project cost is $22,898,000. 
EXECUTIVE SUMMARY 
This project will provide for the design and installation of new infrastructure in the Airport parking
garage, including the installation of a camera-based automated parking guidance system (APGS)
throughout the garage (approx. 12,100 stalls) and electric vehicle supply equipment (EVSE) in the
form of 94 Level 2 electric vehicle (eV) charging stations. 
This infrastructure will significantly improve the customer experience for those who park in the
garage  by reducing  time required to find a vacant parking stall. It will also  reduce the
environmental impacts from those vehicles using the garage (reduction of CO2  emissions
estimated at 17-20 metric tons per year) and provide numerous opportunities to increase nonaeronautical
revenues for the Airport by maximizing available garage occupancy, most specifically
the APGS's ability to help staff fully leverage the demand-based/variable rate pricing capabilities
of the Airport's planned online parking pre-booking/yield management system. 
This initial request will provide the necessary funding to support overall design of the APGS and
EVSE systems, the procurement of the APGS hardware/software, and the development of
construction bid documents for installing both systems in the garage. The project will return to
Commission to request the construction phase funding in Q1 of 2020. 
Template revised April 12, 2018.

COMMISSION AGENDA  Action Item No. _8c___                              Page 2 of 9 
Meeting Date: October 23, 2018 

JUSTIFICATION 
The parking garage serves as the front door to the Airport for a significant portion of the travelling
public, as well as for many people coming to the Airport for meetings with tenants and staff. The
rapid growth in enplanements over the past five years, combined with the sheer magnitude of the
garage (12,100 stalls spread across eight floors), and a non-traditional V-shaped design, have
made it increasingly difficult for parking customers to find an open stall  at times even when
these stalls are readily available. 
Not only are these searches laborious for our customers, the additional time spent driving around
each floor in their search negatively impacts the environment. Often times, the inability to find a
stall in a timely manner becomes a lost revenue opportunity for the Airport, as the driver leaves
the garage believing that the garage is full or they are just too frustrated to continue searching. 
The best opportunity to improve the overall customer experience in the garage, reduce the
environmental  impact  from people looking for parking stalls,  and  increase non-aeronautical
revenue is the installation of an automated parking guidance system (APGS). This is  a system of
cameras and lighting down each row that denotes whether a parking stall is occupied or vacant.
This system will make it much easier for a driver to find a vacant stall as soon as they enter the
garage, directing them to vacant stalls on available floors. In addition, the  real-time information
provided by the system (365/24/7) will help Airport staff to know the exact status of stall
availability throughout the garage. 
The installation of an APGS also provides an opportunity to increase electrical charging capacity in
the garage  and expand the number  of electrical charging stations to meet public demand.
Currently, there are 48 Level 1 public parking charging stations in the garage. These charging
stations are consistently occupied due the growth in the number of electrical vehicles driven by
the travelling public.  This project will nearly double the number of eV charging stations to 94
stalls, as well as provide the capability to double the vehicle charging capacity (120V vs 240V
power supply). It also provides the opportunity for further eV stall expansion should future
demand require it. 
The revenue generated from the Airport's parking garage is forecasted to reach $76.8 million by
year-end 2018. This is the single largest source of non-aeronautical revenue and critical to funding 
the infrastructure investments needed to ensure that the Airport meets the region's air
transportation needs in the coming decades.  This investment will help maintain the garage's
competitive position in one of the most hotly contested airport parking markets in the U.S. and in
so doing, will support the growth of revenues generated by the garage.
The APGS combined with the EV chargers supports the Century Agenda strategic goals and
objectives to advance this region as a leading tourism destination and business gateway by
meeting the region's air transportation needs at the Airport for the next 25 years, and be the
greenest, and most energy efficient port in North America by reducing air pollutants and carbon

Template revised September 22, 2016; format updates October 19, 2016.

COMMISSION AGENDA  Action Item No. _8c___                              Page 3 of 9 
Meeting Date: October 23, 2018 
emissions. It also supports the Aviation Division strategies to provide an extraordinary customer
experience and maximize non-aeronautical net operating income. 
DETAILS 
Scope of Work 
1.  Provide an Automated Parking Guidance System (APGS) throughout all public parking areas of
the garage (approx. 12,100 stalls): Parking Garage Floors 0 (sublevel), 1, 2, 3, 4, 5, 6, 7, 8,
adjacent over-height parking area, and parking entries. 
The APGS includes the procurement and installation of all software and hardware to support
the system. The system will likely include networked automated license plate-recognition
(ALPR) cameras, ultrasonic sensors, and LED lighting indicators to detect and denote real-time
individual stall occupancy/availability and individual vehicle identification; interior and exterior
dynamic wayfinding signage, including floor, section and row count displays; and enterprise
software for system management, security/surveillance, reporting, etc. 
2.  Provide Electric Vehicle Supply Equipment (EVSE), on parking garage Floors 4 and 7. This
includes a total of 94 Level 2 eV charging stations. 
a.  Floor 4 - Thirty (30) Level 2 eV charging stations for Terminal Direct customers. 
b.  Floor 7 - Sixty-four (64) Level 2 eV charging stations, for General Parking customers 
(54), and employees (10). 
c.   Install additional infrastructure for fourteen (14) future Level 2 eV charging stations on
Floor 4. 
3.  Provide electrical and communications infrastructure and/or upgrades within the Parking
Garage to support the APGS and EVSE installations. This includes two electrical rooms, 480V
feeders, transformers, panelboards, 120V branch circuits, and fiber optic communications
cables. 
4.  Decommission and removal of existing floor count system within the parking garage. 
5.  Remove existing public-facing Level 1 eV charging station receptacles and associated branch
circuit  back  to  panelboard.  Existing  Level  1  eV  charging  stations  include  12  dedicated
receptacles on Floor 4 and 36 dedicated receptacles on Floor 5. 




Template revised September 22, 2016; format updates October 19, 2016.

COMMISSION AGENDA  Action Item No. _8c___                              Page 4 of 9 
Meeting Date: October 23, 2018 

Small Business and Women and Minority-owned Business Enterprise (WMBE) Participation 
To maximize small business and WMBE  participation, Port staff will be providing additional
outreach efforts through the Port of Seattle's Small Business Generator (PortGen) program. This
small business program will not only provide information about the project scope of work; it will
also provide training about the Port's procurement processes. 
Working with Economic Development Division's Small Business Department, the Port will establish
small business and WMBE aspirational goals for this project.
Schedule 
Design start                                    2018 Quarter 4 
Commission construction authorization       2020 Quarter 1 
Construction start                             2020 Quarter 2 
In-use date                                    2022 Quarter 2 
Cost Breakdown                                     This Request          Total Project 
Design                                                 $10,946,171            $11,244,000 
Construction                                                                   $11,654,000 
Total                                                        $10,946,171             $22,898,000 

ALTERNATIVES AND IMPLICATIONS CONSIDERED 
Alternative 1  Maintain the Status Quo 
Cost Implications: An estimated $280,000 in costs to date would need to be expensed if this
project is not approved. 
Pros: 
(1)   No capital investment required. 
Cons: 
(1)   Does not provide opportunities for additional parking revenue. 
(2) Does not address the parking operation's #1 customer experience shortcoming: ease of
finding a parking stall. 
(3)   Does not provide any reduction of environmental impacts/CO2 emissions. 
(4)   Does not address the public demand and increasing use of electric vehicles by customers
and employees. 
This is not the recommended alternative. 


Template revised September 22, 2016; format updates October 19, 2016.

COMMISSION AGENDA  Action Item No. _8c___                              Page 5 of 9 
Meeting Date: October 23, 2018 

Alternative 2  Install an automated parking guidance system (APGS) in the parking garage only on
the Terminal Direct/4th floor (1,700 stalls) and install 94 Level 2 electric vehicle (eV) charging
stations for general public and Port employee use. 
Cost Implications: $6,700,000 
Pros: 
(1)   Reduces capital investment. 
(2)   Provides a better customer experience on the Terminal Direct/4th floor of parking garage
(reducing time required for preferred customers to find an unoccupied stall). 
(3)   Reduces environmental impacts/CO2 emissions for 4th Floor parking. 
(4)   APGS Head-end equipment and software development would be complete and ready for
future expansion to other floors. 
(5)   Supplies additional charging capacity to address the public demand and increasing use of
electric vehicles by customers and employees. 
(6) Provides a "charge friendly" location for eV owners which will help reduce vehicle
emissions and thereby further the Port Century Agenda objective to "Be the greenest
and most energy efficient port in North America." 
Cons: 
(1)   Parking revenue generation  opportunities limited solely to the 4th Floor. Does not
provide opportunities to maximize parking revenue, enhance the promotion of available
parking offerings and amenities, or reduce operational staff time on other floors of the
garage. 
(2)   Would only be able to manage garage occupancy on the 4th Floor in real-time and utilize
available stall inventory. 
This is not the recommended alternative. 
Alternative 3  Install an automated parking guidance system (APGS) on all floors (12,100 stalls) of
the parking garage (Floors 1-8, Sub-Level, and Over height) and the installation of 94 Level 2
electric vehicle (eV) charging stations on Floors 4 and 7 of the garage for general public and Port
employee use. 
Cost Implications: $22,898,000 
Pros: 
(1)   Allows the Airport to effectively maximize revenue throughout all floors/stalls of the 
parking garage via system integrations with the online parking pre-booking/reservation
system (OBS) and the parking revenue control system. 
(2)   Addresses the Airport parking operation's #1 customer experience shortcoming: ease of
finding  a  parking  stall.  Provides  a  preferred  customer  experience  throughout  all
floors/stalls of the parking garage. 
(3)   Allows the Airport to better manage occupancy for all floors of the garage in real-time
(24/7/365) including available parking inventory (unoccupied stalls) to achieve optimal
garage occupancy of 90%. 
Template revised September 22, 2016; format updates October 19, 2016.

COMMISSION AGENDA  Action Item No. _8c___                              Page 6 of 9 
Meeting Date: October 23, 2018 
(4)   Enhances the promotion of available parking offerings and amenities and reallocates 
operational staff time spent conducting nightly vehicle-based stall inventory to other
customer service functions. 
(5)   Reduces  environmental  impacts/CO2  emissions.  Will  decrease  CO2  emissions  from
passenger vehicles by an estimated 17 to 20 tons per year when average circulation time
is reduced by one minute per driver. 
(6)   Supplies additional charging capacity to address the public demand and increasing use of
electric vehicles by customers and employees. 
(7) Provides a "charge friendly" location for eV owners which will help remove vehicle
emissions and thereby further the Port Century Agenda objective to "Be the greenest
and most energy efficient port in North America." 
Cons: 
(1)   None 
This is the recommended alternative. 

FINANCIAL IMPLICATIONS 
Cost Estimate/Authorization Summary               Capital        Expense           Total 
COST ESTIMATE 
Original estimate                                $14,610,821               $0     $14,610,821 
Budget Increase                                $8,187,179       $100,000      $8,287,179 
Revised estimate                              $22,798,000       $100,000     $22,898,000 
AUTHORIZATION 
Previous authorizations                            $297,829               $0        $297,829 
Current request for authorization               $10,946,171               $0     $10,946,171 
Total authorizations, including this request      $11,244,000               $0     $11,244,000 
Remaining amount to be authorized           $11,554,000       $100,000    $11,654,000 
Total estimated project cost                     $22,798,000        $100,000     $22,898,000 

Annual Budget Status and Source of Funds 
This project was included in the 2018  2022 capital budget and plan of finance as a business plan
prospective project with a budget of $14,610,821. The budget increase has been transferred from
the Non-Aeronautical allowance CIP (C800754) resulting in no net change to the Aviation Division
capital budget. The funding sources will include the Airport Development Fund and future revenue
bonds. 
The project budget increased by $8,287,179 due to additional  project definition via design
development, as well as increased budgetary estimates from vendors. Original APGS vendor
estimates excluded new electrical infrastructure required to power the system from installation
locations back to electrical panels  located throughout the garage. Two-year escalation  of
construction  labor  and  materials  as  well  as  constructability  cost  (night  work,  phasing
Template revised September 22, 2016; format updates October 19, 2016.

COMMISSION AGENDA  Action Item No. _8c___                              Page 7 of 9 
Meeting Date: October 23, 2018 
requirements) from original project definition also contributed to the increase in the overall
project cost. 

Financial Analysis and Summary 
Project cost for analysis               $22,898,000 
Business Unit (BU)                   Aviation Commercial Management/Landside Operations 
Effect on business performance       Cumulative incremental net operating income of $21.8 
(NOI after depreciation)                  million (based on most likely scenario  70% occupancy
threshold) is anticipated to be directly associated with
this project for the first eight years of product useful life
(2022-2029). 
This project will increase depreciation by approximately 
$2 million per year. This depreciation has been factored
into the NOI above. 
IRR/NPV (if relevant)                  Most likely scenario (based 70% occupancy threshold)  
7%/$2,600,000 
CPE Impact                         N/A 
Lifecycle Cost and Savings 
This project replaces existing floor count equipment that is obsolete. The new APGS and EVSE 
equipment will have a material impact on current  Aviation Maintenance Operations and
Maintenance (O&M) costs. As the design for these two systems is not yet complete, and the
providers have not been identified, estimated O&M costs can vary significantly from provider to
provider. A reasonable range of annual O&M costs would be between $170,000 and $250,000. A
better estimate of ongoing costs can be provided once a service provider and service delivery
method have been finalized. 
Future Revenues and Expenses (Total cost of ownership) 
Through  the  concerted  efforts  of  Airport  staff,  parking  garage  revenue  has  increased
approximately $4 million or 8% annually for the past five years (through June 2018). A significant
portion of this revenue growth, and the corresponding increase in garage occupancy, can be
attributed to the implementation of the parking coupon program in 2012. The coupon program is
anticipated to generate approximately $9 million in revenue in 2018. 
However, the coupon program is inherently a blunt instrument, with no ability to make price
adjustments based on garage occupancy and/or customer demand, or to obtain customer/trip
data (including duration of stay) in advance of the coupon transaction. As such, the program will
be transitioned to an online parking pre-booking system (OBS) in 2019, which will allow the
Airport to utilize yield management principles and variable rate pricing capabilities of the OBS to 
better  leverage available garage occupancy and maximize revenue.  Yield management has 
effectively been used in other travel industries (airlines, hotels, rental cars) for more than 10
years. 
Template revised September 22, 2016; format updates October 19, 2016.

COMMISSION AGENDA  Action Item No. _8c___                              Page 8 of 9 
Meeting Date: October 23, 2018 

Airport staff have found that a customer's ability to find an open stall starts to degrade when the
garage hits a threshold of approximately 70% occupancy at any point in time. This could be due to
many factors, including the sheer magnitude of the garage (12,100 stalls spread across eight
floors) and the non-traditional V-shaped design of the structure. As our current average peak
overnight occupancy in 2018 is approximately 54%, the assumption is that the Airport could use
OBS technology to fill the 16% in available garage occupancy before a customer experiences any
degradation in their ability to find a stall (70% - 54% = 16%). 
Revenue attainable through the OBS hinges on the Airport's ability to fully leverage available
garage inventory and sell open  stalls at competitive rates to consistently achieve a garage
occupancy of 90% at all times of day. This requires the ability to monitor garage occupancy in realtime
24/7/365, accurately forecast future occupancy, and most significantly, minimize/eliminate
any degradation to customer experience (ability to find an open stall) when the garage is at or
near maximum occupancy. 
The value of an APGS is the incremental revenue from the percentage of occupancy between the
current 70% occupancy threshold (noted above) vs. the garage's actual maximum occupancy of
90%. (On average, 10% of stalls are traditionally excluded from overall garage occupancy to
account  for  any  unanticipated  drive-up  customers  and/or  parking  program  participant
requirements). Without the level of precision an APGS provides, the Airport would need to scale
back the number of available stalls allocated for sale in the OBS to the 70% maximum occupancy
threshold to ensure an adequate level of service (thus reducing the ability to maximize parking
revenue). 
With OBS/APGS/PRCS systems integration, the Airport is anticipated to generate an average of
$3.7 million - $6.5 million/year in incremental revenue through the utilization of the 20-25% in
available garage occupancy (90% - 70% = 20%). This revenue assumption is based on current
revenue generated from the parking coupon program, and assumed occupancy and revenue
deltas between 1) the stand-alone implementation of an online parking pre-booking system and 2)
the implementation of an online parking pre-booking system integrated with an automated
parking guidance system in the garage; it is derived from the utilization of available garage
occupancy to achieve a daily 90% occupancy rate. 

ADDITIONAL BACKGROUND 
Ability to Enhance Airport Environmental Goals 
The Airport has well-established environmental programs and is working to reduce the carbon
footprint of the Airport, its tenants, airlines, contractors, visitors, and employees. The Port's
Century Agenda sets clear goals for improving air quality and reducing greenhouse gas emissions.
An APGS would reduce overall dwell time for customers in the garage, as it would eliminate the
need to search multiple rows -- and during peak occupancy periods multiple floors -- to find an
unoccupied stall in the garage, thus reducing vehicle emissions.  Portland International Airport
Template revised September 22, 2016; format updates October 19, 2016.

COMMISSION AGENDA  Action Item No. _8c___                              Page 9 of 9 
Meeting Date: October 23, 2018 
found that when their APGS was installed in 2007, the average driving time in their garage
decreased by 50%, from two minutes down to less than one minute. 
An environmental benefit analysis indicated that an APGS would reduce passenger vehicle
emissions by providing drivers with more efficient access to available parking spots.  In terms of
greenhouse gas emissions, an APGS would decrease CO2 emissions from passenger vehicles by an
estimated 17 to 20 tons per year when average circulation time is reduced by one minute per
driver.  Other emission benefits include reductions of carbon monoxide, nitrogen oxides, and
particulate matter within the garage. 
The EVSE portion of the project includes the installation of 94 Level 2 electric vehicle (eV) charging
stations in the garage. This includes 30 Level 2 eV chargers on 4th floor for premium parking 
(Terminal Direct), and 64 Level 2 eV chargers on the 7th floor for general passenger and employee
use (General Parking). Public demand and increasing use of eVs by customers and employees are
driving the need to supply additional electrical charging capacity in the garage. 
Drivers using a conventional vehicle powered by an internal combustion engine (ICE) emit over 5
metric tons of CO2 per year, per vehicle, and the transportation sector represents close to 50% of
all CO2 emissions in Washington State (per Washington State Department of Transportation).
Drivers of eVs use electricity that is generated by a variety of sources, emitting 1.06 metric tons of
CO2 per EV each year, a reduction of 79%. 
Increasingly, state and federal governments recognize the opportunity to realize environmental
benefits through electrified transportation. As stated in House Bill 1853, passed in the 2015 WA
legislative session, "The legislaturefinds that state policy can achieve the greatest return on
investment in reducing greenhouse gas emissions and improving air quality by expediting the
transition to alternative fuel vehicles, including electric vehicles."
ATTACHMENTS TO THIS REQUEST 
(1)   Presentation slides 
PREVIOUS COMMISSION ACTIONS OR BRIEFINGS 
None 




Template revised September 22, 2016; format updates October 19, 2016.