8b Ground Transportation Briefing 1

Item No. 9a_supp 
Meeting Date: September 25, 2018 
Ground Transportation 
at Sea-Tac Airport 
September 25, 2018 


1

Briefing Outline 
Ground Transportation Framework 
Ground Transportation Initiatives currently underway 
Ground Transportation Access Plan (GTAP) 
Objectives and approach 
Context 
Results 
Next Steps and Timeline 

Port is implementing a range of ground transportation improvements and initiatives 
2

Current Challenges 
Increasing roadway congestion 
Market disruptions 
Emerging ground transportation modes 
Social equity 
Environmental effects 
Infrastructure limitations 

Anticipate increasing roadway congestion as demand increases 
3

Framework 
Guiding Principles                  Framework provides clear guidance
about how to evaluate strategies
and tactics 
Goals
Illustrates extent to which an
approach achieves desired outcomes 
Strategies                      Applies to facilities, operations and
regional strategies 
Tactics 
4

Guiding Principles 
Consider overall environmental effects and reduce impacts
where possible 
Improve customer experience by reducing roadway congestion 
Support customer choice for a range of transportation options
to and from the airport 
Support living wage jobs and equal business opportunities 
Generate revenue to support region's needs for a sustainable
airport, including leveraging existing infrastructure 
Principles applied to GTAP strategies and consistent with study sessions
5

Goals 
Reduce 2007 scope 3 GHG emissions* 50% by 2030 (to 79k) 
2017 Scope 3 GHG emissions*: 190,000 tonnes/year 
Max 15 minute travel time  clock tower to curb or parking 
Port data will be leveraged to track travel time 
Reduce private vehicle pickup/drop off to 30% 
Current mode share: 41% 
Achieve social equity goals (support living wages and equal
business opportunities) 
Ensure a first-class ground transportation operation for
customers through financial sustainability 
*From passenger vehicles                                                                                        6

Ground Transportation Framework 
Guiding Principles 
Goals             Strategies and Tactics 
SAMP        e.g. roadway relocation, 
Reduce            50% scope 3                          Widen Arrivals Approach 
environmental        reduction 
impact 
15 minutes tower          GTAP         e.g. first/last mile,
Reduce roadway      to curb                                access fees, express bus 
congestion 
30% private vehicle
Support customer                            Operational       e.g. rematch, TNCs on
pick-up/drop-off 
choice                                                             Arrivals, garage utilization 
Social Equity 
Social equity 
Financial                   Contracts         e.g. e-KPIs, driver income,
Generate revenue     sustainability             Taxi, TNC,       guaranteed min. wait time 
for sustainable                                     other GT 
airport 
Port policies provide guidance in all categories                     7  7

Initiatives to Leverage Existing Infrastructure 
Continuous Process Improvement exercise focused on airport
roadway congestion  shifted TNCs to Arrivals Drive in a.m. peak 
Evaluate immediate GT recommendations (e.g. garage
utilization, alternate GT entrance) 
Express Bus/Eastside Baggage study 
Rematch program for TNCs 
Widen Arrivals Approach project 
SR 518 Corridor study 
Taxi RFP draft 
Ongoing initiatives will significantly reduce congestion and some will reduce carbon 
8

Ground Transportation Access Plan 
(GTAP) 

9

Study Objectives 
Increase access to high occupancy modes
such as transit 
Advance transportation modes and programs
to foster social equity and customer choice 
Consider the financial/revenue impacts of
potential strategies. 

GTAP objectives advance all three aspects of sustainability 
10

Study Approach 
Conduct Research: 
Identify benchmarks and existing conditions,
review regional transportation plans 
Stakeholder Outreach 
Data Analysis 
Generate comprehensive list of
candidate strategies (64 total) 
Level 1: Evaluate and rank candidate strategies
for GTAP goals. Identify top 10. 
Level 2: Identify equity tradeoffs among top
strategies and quantify key metrics 
Recommend strategies and
tactics for Port to explore 
GTAP used systematic approach with robust outreach                     11

Confirming Principles 
Ground Transportation                       Commission 
Access Plan (GTAP)                    Study Session (July 10th) 
Improve regional access and 
NA 
operations 
Reduce environmental impacts                            Environmental 
Increase revenue                             Affordability/increase revenue 
Support customer choice                           Increase customer service 
Reduce traffic congestion                                Reduce congestion 
Social: reduce barriers to opportunity for historically
Equity: protecting surrounding communities.
underserved communities 
Economic opportunity for providers and contracted
Provides economic opportunity 
organizations 
Strong correlation between GTAP study screening of strategies and Commission feedback 
12

SEA Trends in Mode Share 
45%
39% 
40% 
39%        38% 
40%
Private vehicles have
maintained a steady share 
35%

30%

25%
App-based Technology Impact 
20%                    15% 
16% 
15% 
13% 
15%

10%                                        8%                                  8% 
6%   6%                          6% 
5%         5%   5%         5% 5% 5% 
4%            4% 
5%                                                                             3% 
2% 
1% 1% 1% 1% 
0% 
0%
Private vehicle      Rental vehicle   TNC (e.g. Uber, Lyft)   LINK light rail     Shuttle Express          Taxi         Public transit bus
curbside
<20% pax access via
2014   2015   2016   2017
high-occupancy modes
SOURCE: Port of Seattle Business Intelligence, Enplaning Passenger
Survey (2014-2017). Does not reflect total mode share.                                                                                                        13

Current Mode Split 
Travel Mode                   % of Passengers 
Private vehicle drop/pickup                         41% 
Airport Garage/off-airport parking                  15% 
TNC                                           9% 
LINK Light Rail                                          6% 
Taxi                                                                 3% 
Public transit bus                                      1% 
Other (charter, airporter, shuttle,
rental cars)                                           25% 

Private vehicle drop off/pick-up is highest mode with public transit bus least-used mode 
14

Consider Typical Airport Passenger 
Extremely time-sensitive 
Relatively high income 
o 48% earn > 100K/yr 
Travels alone (55%) 
Flies thru SEA 
o 54% once or twice/year 
Trip origin 
o 70% SEA origin/destination 
Passenger travel motivations are different from average road/rail commuter 
15

Barriers to using Link Light Rail 
to and from the Airport 
Barrier Score 
Travel time vs. car                                                                 24 
Need to transfer                                     14 
Service frequency                                 13 
Service reliability                                   12 
Handling luggage                         10 
Outdoor walk to/from transit station                         9 
Behavior of other transit passengers                  6 
Likelihood of rain             4 
Covered walk between airport and transit station             4 
Ticket cost        2

Top 10 GTAP Strategies and Tactics 
Near-term Port initiatives: 
Express Bus/Eastside Baggage Service (feasibility study) 
Form an airport-wide Transportation Management Association (TMA) 
Partner with regional agencies to incentivize mode shift: 
Information sharing and promoting transit 
Public-private partnerships for First/Last Mile Coverage 
Increase/preserve King County Metro RapidRide and Sound Transit bus service 
Offer ticket for free transit ride/ride-free area 
Provide incentives (e.g., coupons) for ride-share and transit use 
Further analyze: 
Revenue structures for autonomous vehicles (AVs) 
Airport access fees 
Restructuring Port employee parking 
Each of the 10 strategies needs additional research and/or key partnerships 
17

Next Steps 
September 25, 2018: Commission briefing on ground transportation framework
and GTAP study 
October 23, 2018: Commission discussion/possible action on GT framework and
briefing on taxi service options 
November 13, 2018: Commission discussion/possible action on taxi RFP 
December 11, 2018: Commission request for design authorization for Widen
Arrivals Approach project 
January 30, 2019: Taxi RFP released 
June 30, 2019: Sign new taxi contract and 90 day transition for 10/1 start 
September 30, 2019: ESFH contract expires, contains holdover provisions and
two (2) optional one-year extensions 
Coordinated schedule to move forward with multiple initiatives 
18

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