California high speed rail initiative
This presentation is the property of its rightful owner.
Sponsored Links
1 / 29

California High-Speed Rail Initiative PowerPoint PPT Presentation


  • 82 Views
  • Uploaded on
  • Presentation posted in: General

California High-Speed Rail Initiative. Lieutenant Commander J Ryan “ Slappy ” McLaughlin, USN Major Greg Whelan, USA OA 4204 Red Team Project Network Flows and Graphs. CA High-Speed Rail Initiative.

Download Presentation

California High-Speed Rail Initiative

An Image/Link below is provided (as is) to download presentation

Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author.While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server.


- - - - - - - - - - - - - - - - - - - - - - - - - - E N D - - - - - - - - - - - - - - - - - - - - - - - - - -

Presentation Transcript


California high speed rail initiative

California High-Speed Rail Initiative

Lieutenant Commander J Ryan “Slappy” McLaughlin, USN

Major Greg Whelan, USA

OA 4204 Red Team Project

Network Flows and Graphs


Ca high speed rail initiative

CA High-Speed Rail Initiative

“California’s high-speed rail project will create hundreds of thousands of jobs, linking California’s population centers and avoiding huge problems of massive airport and highway expansion”

- CA Governor Brown, November 1, 2011

“It’s a huge infrastructure but it’s absolutely necessary for our future” - SF Mayor Lee,May 23, 2012

“It’s an overall approach to building tomorrow’s transportation system” - Dorothy Rothrock, VP CA Technology Association


Outline

Outline

  • Background

    • CA High-Speed Rail overview

    • Benefits / Concerns

  • Problem Statement

  • Network Design

    • Graph Design

    • Assumptions / Limitations

  • Analysis

    • Shortest Path

    • Multi-Commodity

    • Modified Multi-Commodity

  • Concluding Remarks


Project highlights

Project Highlights

  • Rail Line Linking S-N

  • 800 Miles of Track

  • 24 Stations

  • $68.4 Billion

  • Electrically Powered

  • Fastest Train in U.S.

  • L.A. to San Francisco in Two Hours and 40 Minutes


Projected route

Projected Route

  • Initial investment is for the line in dark green primarily through the central valley region

  • Future routes continue into San Francisco, San Diego and Sacramento


Proponents

Proponents

  • Environmentally Sound

  • Ease/Cost of travel

  • Infrastructure Improvements

  • More Travel Options

  • Improved Trade

  • Jobs

  • Decrease Congestion


Population distribution

Population Distribution

  • $1.9 Trillion Economy

  • 38 Million People

  • 170,000 Miles of Roads

  • 6 of the Most Congested Urban Areas in U.S.


Opposition

Opposition

  • Road Infrastructure

  • Right of Way

  • Lack of Coherent Plan

  • Inaccurate Ridership Estimates

  • Cost


Funding concerns

Funding Concerns


Problem statement

Problem Statement

  • Do Californians need the California High Speed Rail initiative?

  • Consider real world interdiction of phases of the project through budget cuts.

    • Quantify the effect on travelers

    • Effectiveness of the current transportation network

    • Effects of adding High-Speed rail network


Network design

Network Design

  • California Transportation Network


Network design1

Network Design

SanDiegoAR

  • (City, Transportation) pairs

    • (Monterey, Bus)

    • (Monterey, Train)

  • Start and End nodes ~ (City)

  • 28 Cities modeled

SanDiegoBS

SanDiego

SanDiegoHS

SanDiegoTR


Network design2

Network Design

  • Connect nodes if transportation exists or is planned (as the case for High-Speed Rail)

  • Cost ~ Time Required

LosAngeles

LosAngelesBS

LosAngelesAR

SacramentoAR

SanDiegoAR

SacramentoBS

Sacramento

SanDiego

SanDiegoBS


California high speed rail initiative

Sacramento

Bus

Amtrak

Air

High Speed Rail

Oakland

Stockton

San Francisco

Modesto

Palo Alto

Merced

San Jose

Gilroy

Fresno

Salinas

Hanford

Bakersfield

San Luis Obispo

Sylmar

Palmdale

Industry

Ventura

Ontario

Riverside

High Speed Rail

Amtrak

Bus

Airplane

Burbank

Murrieta

Los Angeles

Escondido

Fullerton

University City

Anaheim

San Diego


Assumptions limitations

Assumptions / Limitations

  • Direction of Travel

  • Standardized Transfer/Connection Times

  • No Capacity Limits

  • No Private Transportation

  • Oversimplified Network


Analysis

Analysis

  • Shortest Path

  • Multi-Commodity Flow with Interdiction

  • Multi-Commodity Flow (adding arcs)


Shortest path

Shortest Path

  • Measure of Effectiveness ~ Time

  • Cost ~ Time

  • Interdict ~ Remove Travel Leg

Delay (Time)

Interdiction (Arc)

Dual Variable Distance Constraint

Cost (Time)

Flow

(On Arc)


Shortest path1

Shortest Path

  • Shortest Time from San Diego ~ San Francisco

  • Interdictions


Shortest path2

Shortest Path

  • High-Speed Rail Not a Huge Factor

LA-SAC Comparison

SD-SF Comparison


Shortest path3

Shortest Path

  • More Remote the City

    • Bigger Factor

BF-SJ Comparison


Multi commodity flow

Multi-Commodity Flow

  • Primary Measure of Effectiveness

    • Time Factor

  • Capacities

  • “Commodities”

  • 627,464 total


Multi commodity flow1

Multi-Commodity Flow

  • Gravity Model of Trade

    • Employed in 1954 by Walter Isard

    • Predictions of economic trade flows

      • G – constant

      • Pi – population factor

      • Dij – distance factor


Multi commodity flow2

Multi-Commodity Flow

  • Current Network vs. Network with HSR

HSR Addition Comparison


Multi commodity flow3

Multi-Commodity Flow

  • Only Interdict HSR

HSR Interdiction Comparison


Mcf with no interdiction adding hs rail arcs

MCF with no Interdiction(Adding HS Rail Arcs)

Total Supply Available of Commodity k

1 if HS Rail arc ij is used,

0 if not


California high speed rail initiative

High Speed Rail

Sacramento

Oakland

Stockton

San Francisco

Modesto

Palo Alto

Merced

San Jose

Gilroy

Fresno

Salinas

Hanford

# ArcsMinutes

10 89.6

9 92.7

14 82.5

15 81.9

16 81.2

17 80.7

18 80.3

19 79.9

20 79.7

21 79.6

22 79.5

23 79.5

25 79.4

24 79.4

27 79.4

26 79.4

11 87.1

0 182.7

1 165.4

2 157.2

3 144.4

4 135.1

5 124.5

12 85.3

6 114.5

7 106.1

8 98.0

13 83.5

Bakersfield

San Luis Obispo

Sylmar

Palmdale

Industry

Ventura

Ontario

Riverside

High Speed Rail

Amtrak

Bus

Airplane

Burbank

Murrieta

Los Angeles

Escondido

Fullerton

University City

Anaheim

San Diego


Conclusion

Conclusion

  • High-Speed Rail will decrease the average time to travel

  • Makes current transportation network more resilient

  • CA should start construction in the LA area


Future considerations

Future Considerations

  • Expand graph (more realism)

    • Integrate $ cost per segment

    • Integrate option for POV transportation

    • Additional arcs/nodes

    • # of trains/bus/airplane per day

    • Capacity constraints

  • Consider addition/deletion of stops

    • Changing routing of track


Questions

Questions


  • Login