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EXAMINING INFORMATION NEEDS FOR EFFICIENT MOTOR CARRIER TRANSPORTATION BY INVESTIGATING TRAVEL TIME CHARACTERISTICS AND LOGISTICS.
| 题名： | EXAMINING INFORMATION NEEDS FOR EFFICIENT MOTOR CARRIER TRANSPORTATION BY INVESTIGATING TRAVEL TIME CHARACTERISTICS AND LOGISTICS. |
| 作者： | Eisele-WL; Rilett-LR |
| 关键词： | Freight-transportation; Highway-transportation; Information-theory; Logistics-; Motor-carriers; Real-time-information; Travel-and-shipment-characteristics; Travel-behavior; Travel-patterns; Travel-time; Trip-purpose; Trucking- |
| 摘要： | This report presents both survey results and field data analysis investigating information needs for motor carrier logistics. Relevant research in the area of estimating travel time characteristics is also provided. Survey results of trucking companies and professionals are given. Although the sample size is low, useful insight was obtained from survey respondents and is discussed. Methodologies for estimating corridor travel time mean and variance from field data collection at 2 test sites are included. Estimates using ITS data are compared to simultaneous instrumented test vehicle and commercial vehicle travel time data. A procedure was outlined for using the loess nonparametric statistical technique to obtain corridor travel time mean and variance estimates from each ITS data source and from commercial and instrumented test vehicles. The estimates from each data source were then aggregated to 5 min, and the ITS data source estimates were compared to commercial vehicle and instrumented test vehicle corridor travel time estimates. In addition, a methodology for testing the accuracy of instrumented test vehicle drivers along a corridor was developed. The research shows that commercial vehicles have statistically different travel time mean and standard deviation than AVI-equipped vehicles, suggesting that it may be beneficial to provide traveler information in real-time for commercial vehicles. Other findings are also given. |
| 总页数： | 2001/06. pp318 (Phots., Figs., Tabs., Refs.) |
| 报告类型： | 科技报告 |
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