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Automatic Pedestrian Counter.
| 题名： | Automatic Pedestrian Counter. |
| 作者： | K. Ozbay; B. Bartin; H. Yang; R. Walla; R. Williams; |
| 关键词： | infrared sensor,automatic pedestrian counter;thermal sensor, pedestrian counts, counting methods, data collection, traffic flow; |
| 摘要： | Emerging sensor technologies accelerated the shift toward automatic pedestrian counting methods to acquire reliable long-term data for transportation design, planning, and safety studies. Although a number of commercial pedestrian sensors are available, their accuracy under different pedestrian traffic flow conditions is still questionable. Moreover, it is difficult to assess the suitability of different sensors for different locations. Some sensors claimed to be more accurate are substantially more expensive. Ease of deployment, power requirements, and long-term deployment issues all play an important role in the selection of sensors. This study attempts to shed light on the understanding of field performance of two commercially available automatic pedestrian sensors by performing rigorous comparisonsnamely, a passive infrared counter by EcoCounter and a thermal sensor by TrafSys. A major innovation of this study was to simultaneously deploy the two relatively different sensor technologiesthermal and infrared sensorsunder the same experimental conditions to compare their performances. To achieve this in a statistically robust manner, pairwise tests were conducted at trails and intersections with different pedestrian flow levels and characteristics. Statistically significant differences in terms of accuracy were found. The thermal sensor was found to produce less error than EcoCounter, which significantly undercounted pedestrians at intersections. This result was expected since EcoCounter is recommended for trail settings. The results also demonstrated the variability of both sensors given different deployment conditions. A calibration procedure for the EcoCounter data was also presented. / Title Note: Final rept. / Supplementary Notes: Sponsored by New Jersey Dept. of Transportation, Trenton. Div. of Research and Technology. and Federal Highway Administration, Washington, DC. / Availability Note: Order this product from NTIS by: phone at 1-800-553-NTIS (U.S. customers); (703)605-6000 (other countries); fax at (703)605-6900; and email at orders@ntis.gov. NTIS is located at 5301 Shawnee Road, Alexandria, VA, 22312, USA. / NTIS Prices: PC A07 / NTIS In-house Control Codes: dotour/dotfha;12091,1101 |
| 报告类型： | 科技报告 |
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