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DISASTER RESILIENT TRANSPORTATATION SYSTEMS

This primer by Walter Hays, from the Global Alliance for Disaster Reduction at the University of North Carolina, USA, emphasizes the critical importance of disaster-resilient transportation systems. When a natural disaster strikes, it can paralyze local, regional, and international transportation networks, hampering emergency response efforts. Transportation systems play a vital role in society by facilitating the movement of people and goods and are a significant contributor to a country's GDP. This primer explores various types and scales of transportation systems, highlighting key infrastructure elements and operations that impact resiliency. Features affecting resiliency include broad geographical coverage, decentralized ownership, and interconnectivity with other lifeline systems. Case studies like Typhoon Morakot in Taiwan underscore the vulnerabilities and challenges faced by transportation systems during disasters.

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DISASTER RESILIENT TRANSPORTATATION SYSTEMS

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  1. DISASTER RESILIENT TRANSPORTATATION SYSTEMS A PRIMER OF KNOWLEDGE THAT CAN MULTIPLY AND SPILL OVER FOR THE BENEFIT OF MILLIONS Walter Hays, Global Alliance for Disaster Reduction, University of North Carolina, USA

  2. A NATURAL DISASTER CAN PARALYZE LOCAL, REGIONAL, AND INTERNATIONAL TRANSPORTATION SYSTEMS

  3. LOSS OF FUNCTION OF A TRANSPORTATION SYSTEM CAN PARALYZE LOCAL, REGIONAL, AND INTERNATIONAL EMERGENCY RESPONSE

  4. TRANSPORTATION SYSTEMS • Provide an essential function to society by moving people and goods from point “A” to point “B” • Represent a substantial share of a country’s GDP (11% for USA.)

  5. TRANSPORTATION SYSTEMS • Types: Roads, railroads, mass transit, water-borne and air transport systems, and pipelines • Scales: urban, regional, national, and international.

  6. Built infrastructure roads, runways, airports, terminals, railways, stations, canals, ports, traffic control centers, maintenance and operation facilities, pipelines, etc. Operations side vehicles, traffic safety and control, power, commun-ications and signaling, maintenance, transportation operators, etc. ELEMENTS OF TRANSPORTATION SYSTEMS

  7. FEATURES THAT AFFECT RESILIENCY • Extend over broad geographical areas • Large number of components that are subject to either POINT or AREA failure.

  8. FEATURES THAT AFFECT RESILIENCY (Continued) • Roadways and railways frequently follow river valleys (easier and cheaper to build) • Utilities, including pipelines, often follow right-of-ways (reduces legal problems and costs)

  9. FEATURES THAT AFFECT RESILIENCY (Continued) • Multiple entities have responsibility for or oversight of the system • Typically owned by public entities and publicly funded • Usually self insured

  10. FEATURES THAT AFFECT RESILIENCY (Continued) • Different modes of trans-portation are interconnected • They interact with each other and other elements of a community’s built environ-ment; hence, the name, Lifeline systems”.

  11. HIGHWAY SYSTEMSFlooding from tropical storms, hurricanes, and typhoons,Landslides (rock falls, spreads, slides, flows)Earthquakes (ground shaking)

  12. TYPHOON MORAKOT: TAIWAN; LANDSLIDE BURIES VILLAGE OF 1,000

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