The World According to Systems (And What it Means for You)

Presentation Overview

• Systems Overview• Background: Traction Power, Train Control,

Communications, and Systemwide Electrical• Conduit, Ductbanks, Cable Troughs &

Pullboxes• Niches, Stub-ups & Special Provisions• How This Affects You• Questions

Systems Overview

Systems Overview

Fremont Milpitas San Jose

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Systems Overview

Fremont Milpitas San Jose

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Systems Overview

Fremont Milpitas San Jose

S24 S26 S28 S40 S44 S50

Systems Overview

Fremont Milpitas San Jose

S24 S26 S28 S40 S44 S50

SWA SKR SRR SHOSME SBE

Systems Overview

Fremont Milpitas San Jose

S24 S26 S28 S40 S44 S50

SWA SKR SRR SHOSME SBE

SRC SLP

Systems Overview

Fremont Milpitas San Jose

S24 S26 S28 S40 S44 S50

SWA SKR SRR SHOSME SBE

SRC SLP

SXB SXC

Systems Overview

Fremont Milpitas San Jose

S24 S26 S28 S40 S44 S50

SWA SKR SRR SHOSME SBE

SRC SLP

SXB SXC

SDL SPD STZ SHR SLA

Systems Overview

Fremont Milpitas San Jose

S24 S26 S28 S40 S44 S50

SWA SKR SRR SHOSME SBE

SRC SLP

SXB SXC

SDL SPD STZ SHR SLA

S25 S27 S29 S37 S45 S55Interlockings

Traction PowerHVSS SLP

HVSS SRC

115kV 115kV

34.5kV Ductbank

WSX SVBX

Traction Power… What makes Trains Go.

Traction PowerHVSS SLP

HVSS SRC

115kV 115kV

34.5kV Ductbank

WSX SVBX

34.5kV/FO Ductbank

Traction PowerHVSS SLP

HVSS SRC

115kV 115kV

34.5kV Ductbank

WSX SVBX

Traction PowerHVSS SLP

HVSS SRC

115kV 115kV

34.5kV Ductbank

WSX SVBX

Traction PowerHVSS SLP

HVSS SRC

115kV 115kV

34.5kV Ductbank

WSX SVBX

TPSS’s

SWA SRRSKR SME SHO SBE

SRRSKR SME SHO SBESWA

Traction PowerHVSS SLP

HVSS SRC

115kV 115kV

34.5kV Ductbank

WSX SVBX

TPSS’sAC

DC

1000V DC

AC

DC

AC

DC

AC

DC

AC

DC

AC

DC

To Contact Rail

1000V DC

SRRSKR SME SHO SBESWA

Traction PowerHVSS SLP

HVSS SRC

115kV 115kV

34.5kV Ductbank

WSX SVBX

TPSS’sAC

DC

AC

DC

AC

DC

AC

DC

AC

DC

AC

DC

Contact Rail

Running Rail

1000V DCDC Pos.

SRRSKR SME SHO SBESWA

Traction PowerHVSS SLP

HVSS SRC

115kV 115kV

34.5kV Ductbank

WSX SVBX

TPSS’sAC

DC

AC

DC

AC

DC

AC

DC

AC

DC

AC

DC

Contact Rail

Running Rail

1000V DCDC Pos.

BART Train Car

Paddles

DC Pos.

SRRSKR SME SHO SBESWA

Traction PowerHVSS SLP

HVSS SRC

115kV 115kV

34.5kV Ductbank

WSX SVBX

TPSS’sAC

DC

AC

DC

AC

DC

AC

DC

AC

DC

AC

DC

Contact Rail

Running Rail

1000V DC

BART Train Car

Paddles

DC Neg.

Neg. Return

Traction Power

Communications

• Network• Unified Optical Network (UON)• Emergency Trip Stations (ETS)• Closed-Circuit Television (CCTV)• Access Control• Telephone• Public Address Systems (PA)• Supervisory Control and Data Acquisition (SCADA)• Radio• Railroad Intrusion Detection System (RIDS)

Communications

• Network• Unified Optical Network (UON)• Emergency Trip Stations (ETS)• Closed-Circuit Television (CCTV)• Access Control• Telephone• Public Address Systems (PA)• Supervisory Control and Data Acquisition• Radio• Railroad Intrusion Detection System (RIDS)

CommunicationsNetwork / UON

… backbone of the BART system.

CommunicationsNetwork / UON

… backbone of the BART system.

CommunicationsNetwork / UON

… backbone of the BART system.

UON Fiber EUON Fiber F

34.5kV FO

CommunicationsRailroad Intrusion Detection System (RIDS)

Communications

Automatic Train Control

S24 S26 S28 S40 S44 S50

Milpitas Station

Berryessa StationTCH TCH TCH TCH

SWA SKR SRR SME SHO SBE

SSL

…They Drive Themselves

Automatic Train Control

Electrical

• Think conduit, ground wire, & ground rods

Food Break…

Conduit Types & Bend Radii

Conduit TypesBuried PVC

Exposed Galvanized Rigid Steel (GRS)

Or

Fiberglass Reinforced Epoxy (FRE)

Cable Trough

Cable Trough Constraints

Ductbank Types & Constraints

Ductbank Type Routing Adjustments Stubup Adjustments

DC Pos Small Lateral: NoneLongitudinal: W/ SSH Permission

DC Neg Small None34.5kV/FO Very Small NoneElectrical Moderate Usually a few feet

Train Control High Lateral: NoneLongitudinal: W/ AR Permission

Communications High None

Pullbox/Splicebox/MH Req’s & Constraints

Type Location AdjustmentsPullbox Lateral: None

Longitudinal: w/ SSH/AR permissionSplicebox None (request AR permission in

emergencies)Manhole Lateral: Sometimes away from the

track, never toward it.Longitudinal: Less than 5ft.

Niche Req’s & Adjustment Constraints

Niche Type Longitudinal AdjustmentsETS (Blue Light) With SSH Systems Permission HVA NoneEXT Approx 5ft (toward ETS only)Track Switch NoneRIDS Within 5 ftSignal NoneLJB Within 5ft

No Vertical Adjustments Permitted

Conduit Stubups Must Match Niche Location

Special Issues: SME

Special Issues: SME

Special Issues: SHO

Sierra Lundy Tunnel

• Design coordination

HOW THIS AFFECTS YOUSSH

Guideway At-Grade

• Drainage coordination (w/ 34.5kV & cable trough)

• Structures coordination (w/ 34.5kV & cable trough installation)

• Be gentle (w/ stubups, trough & boxes)• When DC stubups go in, contact rail

positioning is set

Trench

• Adjustments to crosswalks, niches, invert height, contact rail, and track forms will directly impact systems design & construction

• Systems/Electrical conduit is everywhere, call before you pour.

• We can adjust our routing, but end points are often fixed

• High level of coordination required at trench limits, station ends, overcrossings, and SME & SHO

• Niches and conduit must be properly aligned

Aerial

• Window cutouts are fixed• Sleeves in the structure have to be moved if

contact rail design changes• Traction power, communications, and train

control conduit will transfer from the aerial to the ground on the north and south aerial structure

Wayside

• Utility coordination• Precisely level, coordinated foundations are

key

Stations

• We’re everywhere.• Guideway/Stations interfaces will be key

Questions