10b. Presentation - STS Controls Renewal and Upgrade Project

Item No. 10b_supp
Meeting Date: July 27, 2021
Satellite Transit System (STS) Controls Renewal
and Replacement Procurement and
Construction Authorization
Seattle-Tacoma
International Airport

The STS Moves Public to Airport's N & S Satellites
Design and construction: 1969 - 1972
Last major upgrade: 1999 - 2003
2nd Airport APM in the World
6 Stations with 1.7 Miles of track
Carried 28 Million Passengers in 2019
Replacement System needed by 2034

Project Purpose
Renewal and replacement project for the STS's
Automatic Train Control (ATC) sub-system and
associated software, hardware & networks

Reduces risk by replacing critical 20-year-old
end of life & obsolete components
Optimizes STS system capacity by allowing
increased passenger throughput
System recovery time improved

STS Controls Project  Scope
Construction              Goods & Services
Phase I                  Phase 2
ATC System
- Software
- Hardware
- Network
- Radios
- Certification

Fiber/ Electrical Infrastructure                VATC X 21 Cars

Customer Experience
Planning for STS shutdowns from
11PM to 5 AM
Dedicated Wayfinding Staff
Contracted Bus Support



5

Risks and Operational Impacts
RISK                       DESCRIPTION                              PROBABILITY   IMPACT       MITIGATION PLAN
Safety                        Safety is the utmost priority.  An exposed           Low            High       Both vendors and contractors will be
600V power rail, limited working area and                                     required to adhere to stringent safety
driverless moving train cars pose significate                                      protocol for access and working within
dangers to workers within the STS tunnels.                                     the STS tunnels.
Extended STS outages        Major impacts to Satellite operations with       Medium         High      Busing will be provided for STS outage
extended STS outages                                                     periods. The current controls system
will remain in place until the new
system is completely tested and
certified for passenger service.

Procurement method        The Controls System is proprietary to the        Medium       Medium    The Port is utilizing a Specialist
(single supplier                STS Manufacture.  Staff issued a sources                                          Automated People Mover Consultant to
negotiations)                 sought RFI to determine that only                                              develop scope and pricing documents
Bombardier Transportation could provide                                    to evaluate pricing. Staff is analyzing
the replacement controls.                                                    recent Controls Upgrades from other
Public Owners.

6

Project Timeline
2020            2021              2022             2023            2024
Long
APM    Develop ATC                                                D
ATC Design         Lead      ATC Installation & Testing
Consultant       Bid Package                                                 Items                                                   C
Phase 1
Phase Design
Const.
Phase 2
12 to 15 months
Commission Authorizations                                           Satellite Tunnel Impacts
Phase 1              Nightly Busing Operation
1 to 2 months
APM Consultant / Design       July 2020               Satellite Tunnel Impacts
Goods & Services/ Construction July 2021               Nightly Busing Operation

Cost Breakdown        This Request       Total Project
Authorization         Design             $0    $9,000,000
Construction                     $7,740,000          $7,740,000
Equipment Procurement         $58,500,000        $58,500,000
Support Services                  $3,000,000          $3,000,000
Tota l                                       $69,240,000             $78,240,000


Cost Range: $67M - $95M

STS Asset Management - Long Term
Renewal or Replacement to the Satellite Transit System will be required in the next
10 to 15 years.
Requires study to evaluate alternatives and implementation (Q4 2021 Start)
$600M - $800M for a new APM system
Evaluate alternate technologies
Autonomous vehicles
High-speed moving walkways
Alternate passenger movement to Satellites
Busing
Tunnel / bridge

Questions?

10

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