Transportation Network Vulnerability Assessment: A Quantitative Framework

This paper addresses a quantitative framework for assessing the vulnerability of transportation networks. Subject headings are as follows: Critical Gaps, Needs and Challenges in Transportation Security Analysis - Data Needs, Methodological Challenges, Existing Knowledgebase and Empirical Insights Needed; Qualitative Framework for Network-Wide Security and Vulnerability Assessment - Identifying Factors Affecting Link-Level Vulnerability, Factors Influencing Node, Junction, and Intermodal Vulnerabilities, Role of Flow-Level Attributes on System Vulnerability: Effect of Demand/Supply Shocks, Characterizing Alternatives to Reduce System and Component Vulnerability; Quantitative Framework for Network Vulnerability Analysis - Developing Quantitative Metrics of Component Level Vulnerabilities, Calibration of Vulnerability Index at the Component Level, Integration of Component-Level Vulnerabilities to Estimate Network-Wide Vulnerability Index; Identification of Security Critical Components; Integrating Quantitative Network Security Assessments into Transportation Practice - Design Applications, Extensions to Planning and Evaluation, Improving Operations.