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Development of Trustworthy Intermodal Traffic Measurement. Final Research rept. 15 Feb 03-30 Sep 04.
| 题名： | Development of Trustworthy Intermodal Traffic Measurement. Final Research rept. 15 Feb 03-30 Sep 04. |
| 作者： | Zhang-Y.; Wu-D. |
| 关键词： | *Traffic-measurement.;Data-compilation; Reporting-; Surface-transportation-systems; Data-bases; Data-analysis; Traffic-flow; Distance-distributions; Highway-distances; Research-; Transaction-. |
| 摘要： | As the result of increased level of highway congestion and rapid growth in freight traffic, intermodal freight transportation has become increasingly more important to a sustainable surface transportation system in the U.S. To meet the requirements of policy making, planning and operation of freight transportation, credible freight intermodal measurement is essential. However, reliable and true intermodal freight traffic measure is not currently available. This study looks into the intermodal aspects of rail truck operation and is intended to shed some light on how the current measures are compiled, whether they are reliable, and if there are improvements that can be made. By investigating proprietary data provided by transportation providers, the potential shortcomings of current reporting and compilation practices are discussed, and procedures to obtain more reliable measures are suggested. The study particularly pointed out the fact that the number of transactions involved in the intermodal trips could have directly resulted in inaccuracy in intermodal flow measurement and suggested a possible counter measure of establishing a unique trip identification number. This study is an attempt to better understand the current problems and to propose improvements. Further work is needed for the study of current reporting practices, for detailed plans of new data collection and reporting procedures, and for implementation of the developed plans. |
| 报告类型： | 科技报告 |
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