NOTES: The views presented in the articles in this journal are those of the authors and not necessarily the views of the Bureau of Transportation Statistics. All material contained in this journal is in the public domain and may be used and reprinted without special permission; citation as to sources is required.
The Journal of Transportation and Statistics has been discontinued by BTS because of budget constraints. Papers are therefore no longer being accepted or considered for publication. BTS hopes to bring the Journal back as a virtual publication in the future, and will post any news about the status of JTS on this page.
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| Contributors |
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| Editorial Board |
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| Front Matter |
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| Letter from the Deputy Administrator |
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Paper 1 - The Dynamics of Aircraft Degradation and Mechanical Failure by Leonard MacLean, Alex Richman, Stig Larsson, and Vincent Richman |
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| Table 1 - Description of the Study Sample |
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| Table 2 - Research Hypotheses |
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| Table 3 - Model Variations |
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| Table 4 - Comparison Hypotheses |
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| Table 5 - Fitted Failure Model |
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| Table 6 - Comparison of Models and Operators |
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| Table 7 - Comparison of Estimates |
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| Figure 1 - Probability of Failure of a Single Aircraft |
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| Figure 2 - Aircraft Degradation and Repair |
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| Figure 3 - Number of Failures in an Observation Window |
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Paper 2 - Air Traffic at Three Swiss Airports: Application of Stamp in Forecasting Future Trends by Miriam Scaglione and Andrew Mungall |
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| Table 1 - Hyper-Parameters Given as Standard Deviation and Interventions |
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| Table 2 - Statistical Values of the Goodness-of-Fit Test |
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| Table 3 - Cycle Parameters and Final Growth Rates for Three Swiss Airports |
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| Table 4 - Forecasts of Numbers of Passengers and Aircraft Movements |
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| Figure 1 - Slope Components and Cycles for Aircraft Movements and Passengers at GVA: 1953-2002 |
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| Figure 2 - Trend Plus Cycle and Actual Values (in Logarithms) for Movements and Passengers at GVA: 1953-2002 |
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| Figure 3 - Forecast Figures for Movements and Passengers at GVA |
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| Figure 4 - Slope Components for the Zurich Airport Model with External Shocks Chronology: 1953-2002 |
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| Table A1 - Interpretation of the Hyper-Parameters of the Model for Geneva International Airport |
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Paper 3 - Improved Estimates of Ton-Miles by Scott M. Dennis |
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| Table 1 - Comparison of Annual Data Coverage |
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| Figure 1 - All Ton-Miles |
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| Figure 2 - Air Freight, Express, and Mail Revenue Ton-Miles |
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| Figure 3 - Development of Truck Ton-Mile Estimates |
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| Figure 4 - Truck Ton-Miles |
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| Figure 5 - Railroad Ton-Miles |
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| Figure 6 - Waterborne Ton-Miles |
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| Figure 7 - Pipeline Ton-Miles |
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| Table A1 - All Ton-Miles |
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| Table A2 - Airline Freight, Express, and Mail Revenue Ton-Miles |
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| Table A3 - Development of Truck Ton-Mile Estimates |
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| Table A4 - Truck Ton-Miles |
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| Table A5 - Railroad Ton-Miles |
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| Table A6 - Waterborne Ton-Miles |
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| Table A7 - Oil, Oil Products, and Natural Gas Pipeline Ton-Miles |
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Paper 4 - Spatial and Temporal Transferability of Trip Generation Demand Models in Israel by Adrian V. Cotrus, Joseph N. Prashker, and Yoram Shiftan |
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| Table 1 - Demographic Characteristics by Metropolitan Area and Year |
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| Table 2 - Differences Among the 1972, 1984, and 1996/97 Traveling Habits Survey |
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| Table 3 - Regression Models by Metropolitan Areas: 1984 |
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| Table 4 - Aggregate Estimation Results Using Regression Models: 1984 |
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| Table 5 - Tobit Models by Metropolitan Areas: 1984 |
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| Table 6 - Aggregate Estimation Results Using Linear Tobit Models, by Year |
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| Table 7 - Tobit Models Estimation of Nontravelers: 1984 |
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| Table 8 - Regression Models by Metropolitan Area: 1996/97 |
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| Table 9 - Aggregate Estimation Results Using Regression Models: 1996/97 |
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| Table 10 - Tobit Models by Metropolitan Areas: 1996/97 |
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| Table 11 - Tobit Estimation of Nontravelers by Metropolitan Areas: 1996/97 |
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| Table 12 - Temporal Transferability Results of the 1984 Models in the 1996/97 Files |
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| Figure 1 - Research Sequence of Stages |
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Paper 5 - Governors Highway Safety Associations and Transportation Planning: Exploratory Factor Analysis and Structural Equation Modelling by Sudeshna Mitra, Simon Washington, Eric Dumbaugh, and Michael D. Meyer |
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| Table 1 - Summary of Survey Response |
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| Table 2 - Results of the Exploratory Factor Analysis |
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| Table 3 - Weighted Least Square Estimate of the Model |
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| Table 4 - Overall Goodness-of-Fit Measures for the Model |
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| Figure 1 - Final Model Specifications |
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Paper 6 - Vehicle Breakdown Duration Modeling by Wenqun Wang, Haibo Chen, and Margaret C. Bell |
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| Table 1 - Kruskal-Wallis Test of Vehicle Breakdown Duration |
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| Table 2 - Variables in the Fuzzy Logic Model |
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| Table 3 - Sensitivity Test of the ANN Input Variables |
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| Table 4 - Comparison of the FL and ANN Models |
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| Figure 1 - Map of the M4 Motorway |
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| Figure 2 - Distribution of Vehicle Breakdown Duration |
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| Figure 3 - Vehicle Breakdown Duration and Time of Day |
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| Figure 4 - Vehicle Breakdown Duration and Vehicle Type |
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| Figure 5 - Structure of the FL System |
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| Figure 6 - Surface of the FL System |
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| Figure 7 - Result of the FL Model |
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| Figure 8 - Structure of the ANN System |
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| Figure 9 - Result of the ANN Model |
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Paper 7 - Using Generalized Estimation Equations to Account for Correlation in Route Choice Models |
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| Table 1 - Modeling Results for the BGEE Model with and without Correlation |
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| Table 2 - Modeling Results for the MGEE Model without Correlation |
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| Table 3 - Modeling Results for the MGEE Model with Correlation |
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| Figure 1 - Sample View of a Screen from the Orlando Transportation Experimental Simulation Program (Scenario #3) |
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| Book Reviews |
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Data Review |
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| Table 1 - Airline Employees by Business Model and Size Classification: 2004 |
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| Table 2 - Airline Employees: 2000-2004 |
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| Table 3 - Percentage Change in Airline Employment |
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| Guidelines for Manuscript Submission |
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| Call for Papers |
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| Back Cover |
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