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RURAL STOP-SIGN CONTROLLED INTERSECTION ACCIDENT COUNTERMEASURE SYSTEM DEVICE : VEHICLE-BEHAVIORAL EVALUATION.
| 题名： | RURAL STOP-SIGN CONTROLLED INTERSECTION ACCIDENT COUNTERMEASURE SYSTEM DEVICE : VEHICLE-BEHAVIORAL EVALUATION. |
| 作者： | Hanscom-Fred-R |
| 关键词： | Collision-avoidance-systems; Human-factors; Loop-detectors; Traffic-control; Traffic-signs |
| 摘要： | The Collision Countermeasure System (CCS) is an ITS traffic control device, consisting of activated warning signs and pavement loop detectors. Its application at a rural unsignalized intersection was intended to enhance driver awareness of cross traffic, thus increasing safety. This three-phase vehicle behavioral field evaluation assessed novelty and longer-term CCS impacts. A 42-day, 97,000-vehicle sample was observed before, immediately after, and four-months after the CCS installation. However, the evaluation was based on a targeted 1,652- vehicle sample arriving at the intersection in sufficiently close time proximity with cross traffic as so to demonstrate rural-intersection collision potential. Developed Measures of Effectiveness (M.O.E.s) were derived from CCS accident-avoidance operational objectives. Applied M.O.E.s were: (1) drivers' CCS speed responses in the presence of cross traffic; (2) intersection approach speed reductions; and (3) Projected Times-to-Collision (PTCs), i.e., the elapsed time to which an approaching vehicle would collide with a vehicle in its path in the absence of a timely avoidance response. Human factors (e.g., driver perception-reaction time) accident-avoidance requirements determined critical PTC values that were utilized in the analysis. |
| 总页数： | ITS America. Meeting (10th : 2000 : Washington, D.C..). revolutionary thinking, real results : ITS 2000 : conference proceedings. 2000. pp16 |
| 报告类型： | 科技报告 |
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