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xxiv Introduction xxv Research Background xxv Timetable Management  xxvi Research Objectives and Methodology  xxxi 1Railroad Capacity Tools and Methodologies in the U.S. and Europe  1 1-1Abstract  2 1-2Introduction  3 1-3What is Capacity?  4 1-3-1Capacity Concept and Definitions 4 1-3-2Capacity Metrics  8 1-4Differences between the U.S. and European Rail Systems  8 1-4-1Infrastructure Characteristics  9 1-4-2Signaling Characteristics  10 iv 1-4-3Operation Characteristics  10 1-4-4Rolling Stock Characteristics  11 1-5Capacity Measurement, Analytical, Simulation and Combined Approaches  12 1-5-1Analytical Approach  13 1-5-2Simulation Approach  15 1-5-3Combined Analytical-Simulation Approach  21 1-6Review of Capacity Studies in the U.S. and Europe  22 1-6-1Studies with Analytical Approach  22 1-6-2Studies with Simulation and Combined Approach  24 1-6-3Detailed Assessment of Selected Studies  28 1-7Summary and Conclusions  30 1-8References  32 2. Hybrid Simulation Approach for Improving Railway Capacity and Train Schedules  38 2-1Abstract  39 2-2Introduction  40 2-3Capacity Analysis  41 2-4Hybrid Simulation Approach  45 2-5Case Study  48 2-6Outcomes and Discussion  51 2-6-1Replicating Initial Timetable  51 2-6-2Timetable Improvement  55 2-6-3Additional Capacity Provided by Compression Technique  60 2-6-4Validation of Improved Timetable  62 v 2-7Summary and Conclusions  65 2-8Acknowledgments  66 2-9References  66 3. Evaluating Two Capacity Simulation Tools on Shared-use U.S. Rail Corridor  69 3-1Abstract  70 3-2Introduction  71 3-3Review of Capacity Methodologies and Tools  73 3-4Case Study of the U.S. Shared-Use Corridor 74 3-4-1Objective 74 3-4-2Review of Case Study Characteristics  75 3-5Capacity Analysis, Review of Train Timetable  78 3-5-1Brief Introduction of Applied Tools  78 3-5-2Outcomes of RTC Simulation  81 3-5-3Outcomes of RailSys Simulation  82 3-6Capacity Analysis and Applying Timetable Compression Technique on the Case Study 84 3-6-1Scenario 1: New Freight Train  85 3-6-2Scenario 2: Timetable Compression Technique  87 3-7Conclusions and Next Steps of Research  90 3-8Acknowledgments  93 3-9References  93 4. Capacity Evaluation of Directional and Non-directional Operational Scenarios along a Multiple-Track U.S. Corridor  96

TIMETABLE MANAGEMENT TECHNIQUE IN RAILWAY CAPACITY ANALYSIS: DEVELOPMENT OF THE HYBRID OPTIMIZATION OF TRAIN SCHEDULES (HOTS) MODEL