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ELIMINATION OF THE TRAVEL DIARY: EXPERIMENT TO DERIVE TRIP PURPOSE FROM GLOBAL POSITIONING SYSTEM TRAVEL DATA.
| 题名： | ELIMINATION OF THE TRAVEL DIARY: EXPERIMENT TO DERIVE TRIP PURPOSE FROM GLOBAL POSITIONING SYSTEM TRAVEL DATA. |
| 作者： | Wolf-J; Guensler-R; Bachman-W |
| 关键词： | Accuracy-; Data-collection; Data-processing; Geographic-information-systems; Global-Positioning-System; Travel-diaries; Travel-surveys; Trip-purpose |
| 摘要： | Several recent pilot studies combined Global Positioning System (GPS) technology with travel survey data collection to evaluate opportunities for improving the quantity and accuracy of travel data. These studies used GPS to supplement traditional data elements collected in paper or electronic travel diaries. Although many traditional trip elements can be obtained from the GPS data, trip purpose has remained an important element, requiring the use of a diary to continue. Presented are the results of a proof-of-concept study conducted at the Georgia Institute of Technology that examined the feasibility of using GPS data loggers to completely replace, rather than supplement, traditional travel diaries. In this approach, all GPS data collected must be processed so that all essential trip data elements, including trip purpose, are derived. If this processing is done correctly and quickly, then the computer-assisted telephone interview retrieval call could be shortened significantly, reducing both respondent burden and telephone interview times. The study used GPS data loggers to collect travel data in personal vehicles. The GPS data were then processed within a geographic information system (GIS) to derive most of the traditional travel diary elements. These derived data were compared with data recorded on paper diaries by the survey participants and were found to match or exceed the reporting quality of the participants. Most important, this study demonstrated that it is feasible to derive trip purpose from the GPS data by using a spatially accurate and comprehensive GIS. |
| 总页数： | Transportation Research Record. 2001. (1768) pp125-134 (2 Fig., 4 Tab., 13 Ref.) |
| 报告类型： | 科技报告 |
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