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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Editorial Board |
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Contributors |
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Front Matter |
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Letter from the Editor-in-Chief |
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Paper 1 - Unregistration Rates for On-Road Vehicles in California by Theodore Younglove, Carrie Malcolm, Thomas D. Durbin, Matthew R. Smith, Alberto Ayala, and Sandee Kidd |
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Table 1 - Registration Rates by County |
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Table 2 - Cross-Tabulation of Registration Status with the 2001 DMV Database |
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Table 3 - Cross-Tabulation of BAR Smog Check Test Results with Registration Status |
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Figure 1 - Percentage of Unregistered Vehicles in Large and All Counties |
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Figure 2 - Model Year of All Observed Vehicles |
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Figure 3 - Model Year of All Unregistered Vehicles for Less than 3 Months |
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Figure 4 - Percentage of Total Vehicles, by Model Year that are Unregistered for More than 3 Months |
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Paper 2 - A Bayesian Network Model of Two-Car Accidents by Marjan Simoncic |
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Table 1 - Data on Two-Car Accidents in Slovenia: 1998 |
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Table 2 - Inference Results: Evidence for Accident Type |
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Table 3 - Inference Results: Evidence for Intoxication Variables |
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Table 4 - Inference Results: Evidence for Some Exogenous Variables |
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Figure 1 - Example of a Bayesian Network |
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Figure 2 - The Network Structure |
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Figure 3 - Estimated Unconditional Probabilities of the Bayesian Network |
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Paper 3 - Development of Prediction Models for Motorcycle Crashes at Signalized Intersections on Urban Roads in Malaysia by S. Harnen, R. S. Radin Umar, S. V. Wong, and W. I. Wan Hashim |
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Table 1 - Description, Factor Levels, Coding System, and Basic Statistics of the Explanatory Variables |
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Table 2 - Univariate Analysis of Model 1 |
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Table 3 - Multivariate Analysis of Model 1 |
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Table 4 - Multivariate Analysis of Model 2 |
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Figure 1 - Motorcycle Crashes in Malaysia: 2000 |
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Figure 2 - Motorcycle Rider Casualties Compared with Casualties for Occupants in Other Types of Vehicles: 2000 |
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Figure 3 - Typical Layout of Intersection Geometry |
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Figure 4 - Actual and Modeled Motorcycle Crashes: 1997-2000 (Model 1) |
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Figure 5 - Effects of Traffic Flow on Motorcycle Crashes: Model 1 |
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Figure 6 - Relationship of Major- and Minor-Road Flows with Differing Shoulder Widths (based on Model 2) |
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Paper 4 - Effects of Extreme Values on Price Indexes: The Case of the Air Travel Price Index by Janice Lent |
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Table 1 - Limits and Orders of Magnitude for the Unweighted Mean Factors |
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Figure 1 - All Classes of Service: Quarterly Chained Preliminary Series |
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Figure 2 - Restricted Coach Class: Quarterly Chained Preliminary Series |
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Figure 3 - Unrestricted First Class: Quarterly Chained Preliminary Series |
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Figure 4 - Restricted First Class: Quarterly Chained Preliminary Series |
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Figure 5 - Unrestriced Business Class: Quarterly Chained Preliminary Series |
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Figure 6 - Restricted Business Class: Quarterly Chained Preliminary Series |
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Table A1 - Values of Fisher and Törnqvist Indexes with a Single Outlier τ = 1 μ = 1 |
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Table A2 - Values of Fisher and Törnqvist Indexes with a Single Outlier τ = 0 μ = 1 |
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Table A3 - Unweighted Percentiles of the Unit Value Sub-index Distributions for the Airfare Index Application |
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Paper 5 - Estimating Link Travel Time Correlation: An Application of Bayesian Smoothing Splines by Byron J. Gajewski and Laurence R. Rilett |
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Table 1 - Logarithm of Travel Time for Link 1 v. Time of Day |
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Figure 1 - Logarithm of Travel Time for Link 1 v. Time of Day |
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Figure 2 - Log Travel Time v. Time of Day for Links 1 and 2 |
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Figure 3 - Example Problem with Static Travel Time |
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Figure 4 - Illustration of Covariance Function and Correlation for a Moderately Congested Two-Link Example: Day 10 |
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Figure 5 - Illustration of Covariance Function and Correlation for a Very Congested Two-Link Example: Day 7 |
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Figure 6 - Illustration of Covariance Function and Correlation for a Less-Congested Two-Link Example: Day 20 |
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Figure 7 - 90% Bayes Credible Regions for the Correlation for 20 Days |
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Figure 8 - Correlation Coefficient for Links 1 and 2 as a Function of the Tuning Parameter |
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Paper 6 - Speeds of Rural Interstate Highways Relative to Posting the 40 mph Minimum Speed Limit by Victor Muchuruza and Renatus N. Musa |
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Table 1 - Description of the Study Sites |
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Table 2 - Results of the Volume Analysis |
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Table 3 - Mean Speed Characteristics |
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Table 4 - Percentile and Pace Speed Characteristics |
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Table 5 - Comparison of Before-and-After Speed Data |
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Figure 1 - Hourly Variations of Average Lane Means Speeds |
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Figure 2 - Analysis of Vehicles Traveling at Speeds Below 60 mph |
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Book Reviews |
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Data Review |
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Table 1 - Top 50 U.S. Freight Gateways, Ranked by Value of Shipments: 2003 |
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Call for Papers |
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Call for Papers - Special Issue on Transportation Investment |
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Guidelines for Manuscript Submission |
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Reviewers for 2004 |
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Index for Volume 7 |
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Back Cover |
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