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Contents <br />Page <br />List of Figures v <br />List of Tables x <br />Acronyms and Abbreviations xiii <br />Executive Summary xiv <br />1 Introduction 1 <br />1.1 Understanding Risk 2 <br />Developing Quantitative Risk Criteria 3 <br />Individual Risk Criteria 4 <br />Societal Risk Criteria 5 <br />1.2 LNG Hazards 7 <br />1.3 Robustness of FECR Engineering and Administrative Safeguards 8 <br />2 Systems Description 10 <br />_ 2.1 ISO Tank Containers 10 <br />2.2 Intermodal Facility Operations 14 <br />Aerial Views of Intermodal Facilities 16 <br />2.3 LNG ISO Movement Routes 21 <br />3 Methodology 24 <br />3.1 Estimating Accident Rates and LOC Probabilities 27 <br />Lifting Accident Rates and LOC Probabilities 27 <br />Train Accident Rates 28 <br />Derailment Probability for LNG ISO -Containing Well Cars 31 <br />Derailment of LPG Rail Cars 39 <br />ISO LOC Probabilities 40 <br />LPG Rail Car LOC Frequency 43 <br />Multiple LNG ISO LOC Events 44 Multiple LPG Rail Car LOC <br />Frequency 48 <br />3.2 Flanumble Cloud Formation 48 <br />3.3 Ignition of a Flammable Cloud 50 <br />Probability of Immediate Ignition 51 <br />Probability of Delayed Ignition 51 <br />3.4 Flammable Effects on a Population 52 <br />Flammable Effects Event Trees <br />4 Release Scenario Frequencies 56 <br />1308194.001 - 5691 ii <br />54 <br />