Alarm effectiveness in driver-centred collision-warning systems

被引:137
作者
Parasuraman, R [1 ]
Hancock, PA [1 ]
Olofinboba, O [1 ]
机构
[1] UNIV MINNESOTA,HUMAN FACTORS RES LAB,MINNEAPOLIS,MN 55455
关键词
alarms; collision-warning systems; driver reaction; Intelligent Travel Systems (ITS); false alarms; posterior probability; human-centred design;
D O I
10.1080/001401397188224
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
The potential use of systems that seek to communicate a warning of impending collision directly to the driver is examined. Technological advances in collision-warning systems include reliable, low-cost radars, sensors with low noise levels, and the development of accurate detection algorithms for particular crash types, e.g. rear-end collisions. However, fundamental practical constraints make perfect sensor detection difficult to achieve. Imperfect detection conflates the false alarm rate and experience with other technologies confirms driver aversion to false warnings. Although sensitive alarm systems with high detection rates and low false alarm rates have been developed, the posterior probability of a collision given an alarm can be quite low because of the low base rate of collision events. As a result, only a small proportion of alarms will represent true collision scenarios. These and other factors can conspire to reduce alarm effectiveness in collision-warning systems. The problem is illustrated analytically and potential solutions are advanced.
引用
收藏
页码:390 / 399
页数:10
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