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Evaluating iCone Speed Values against Dual-Loop Speed Values June through August 2011.
| 题名： | Evaluating iCone Speed Values against Dual-Loop Speed Values June through August 2011. |
| 作者： | Bailey, N.; Kuhn, T. |
| 关键词： | Aggregated Period; Average Speed; Cellular Data Service; Doppler Effect; Radar; Speed Error |
| 摘要： | This study was conducted at selected dual-loop detector stations in the BHL Testbed to evaluate the data generated by a portable rapidly deployable, battery-powered traffic monitoring device called an iCone. iCones had previously been used by Caltrans to monitor vehicle speeds in work zones, and the BHL provided a unique opportunity to compare the speed values they generate against speed data from in-ground dual-loop stations. This allowed for careful comparison of the data characteristics including lane-by-lane breakdowns of speed observations and performance in a variety of traffic conditions over time. The iCones were deployed at five BHL dual-loop stations from mid-June to late August 2011. More than 8 weeks of data were collected, with several weeks of matched data between the full set of five deployed iCones and the corresponding dual-loop stations. The data was analyzed, and detailed comparisons were made between the loop data and the iCone data. |
| 报告类型： | 科技报告 |
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