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EFFECTS OF CATASTROPHIC EVENTS ON TRANSPORTATION SYSTEM MANAGEMENT

AND OPERATIONS

Northridge Earthquake- January 17, 1994

U.S. Department of Transportation

John A. Volpe National

Transportation Systems Center

Cambridge, Massachusetts

PDF Version 385KB

April 22, 2002

Prepared for

U.S. Department of Transportation

ITS Joint Program Office


FOREWORD

This report was prepared by the U.S. Department of Transportation's (U.S. DOT) John A. Volpe National Transportation Systems Center (Volpe Center) for the U.S. DOT's Intelligent Transportation Systems (ITS) Joint Program Office. The Volpe Center study team consisted of Allan J. DeBlasio, the project manager, Amanda Zamora, Frederick Mottley, and Robert Brodesky from EG&G Technical Services; Margaret E. Zirker and Michelle Crowder from Cambridge Systematics Inc.; and Terrance J. Regan, Kathleen Bagdonas and Dan Morin from Planners Collaborative. Vince Pearce is the U.S. DOT manager of the review.

This report documents the actions taken by transportation agencies in response to the earthquake in Northridge, California on January 17, 1994, and is part of a larger effort to examine the impacts of catastrophic events on transportation system facilities and services.  The findings documented in this report are a result of a detailed literature search on Northridge lessons learned.  As part of a larger effort, four case studies will be produced:

New York City, September 11, 2001

Washington, D.C., September 11, 2001

Baltimore, Maryland, rail tunnel fire, July 18, 2001

Northridge, California, earthquake, January 17, 1994.

Each of these events resulted in substantial, immediate, and adverse impacts on transportation, and each has had varying degrees of influence on the longer-term operation of transportation facilities and services in their respective region. Each event revealed important information about the response of the transportation system to major stress and the ability of operating agencies and their public safety and emergency management partners to respond effectively to a crisis.  This report emphasizes the transportation aspects of this catastrophic event and lessons learned that could be incorporated into future emergency response planning.


TABLE OF CONTENTS

1.0 Introduction. 3

2.0 Transportation System Response. 4

2.1 Pre-Event 4

2.2 Day of Event 10

2.3 Post-Event 16

Post-Event Traffic Management Operations. 30

3.0 Findings. 34

3.1 Advance Preparations and Planning. 34

3.2 Institutional Coordination. 35

3.3 Guiding Priority: Mobility. 37

3.4 Communications. 38

3.5 The Role of Advanced Technology. 39

3.6 System Redundancy and Resiliency. 39

4.0 Conclusions. 41

Appendix A: Northridge Earthquake Chronology. 43

Appendix B: Northridge Literature Review.. 48


List of Tables

Table 1. Regional Statistics. 4

Table 1. Regional Statistics. 4

Table 2.  Journey to Work (Mode Split) 5

Table 3. Los Angeles Freeways. 6

Table 4. Regional Freeway Management 7

Table 5. Regional Public Transportation. 9

Table 6. ADT on SR-14/I-5 Detours. 19

Table 7. ADT on I-10 Detours. 22

Table 8. Metrolink Ridership. 27

Table 9. ADT Comparisons. 28

Table 10. Freeway Reconstruction Incentives. 33

Table 3. Los Angeles Freeways. 6

Table 4. Regional Freeway Management 7

Table 5. Regional Public Transportation. 9

Table 6. ADT on SR-14/I-5 Detours. 19

Table 7. ADT on I-10 Detours. 22

Table 8. Metrolink Ridership. 27

Table 9. ADT Comparisons. 28

Table 10. Freeway Reconstruction Incentives. 33

List of Figures

Figure 1. Northridge Earthquake Freeway Destruction. 3

Figure 2. Los Angeles County. 4

Figure 3. Pre-Event Transportation Conditions. 8

Figure 4. I-5 Damage at Gavin Canyon. 11

Figure 5. Damage at I-5/SR-14 Interchange. 11

Figure 6. Damage at I-10/La Cienga Boulevard. 12

Figure 7. Transportation Conditions – January 17, 1994. 15

Figure 8. 1-5 and I-5/SR-14 Interchange Detours. 18

Figure 9. I-10 Detours. 22

Figure 10. SR-118 Damage and Alignment 24

Figure 11. SR-118 Detours. 25

Figure 12. 1993-94 Metrolink Ridership. 27

Figure 13. Post-Earthquake Transportation Conditions. 29

Figure 14. Demolition of I-10 at La Cienga Boulevard.