This study demonstrates the need for a holistic safety-impact assessment of an advanced driver assistance system (ADAS) and its effect on eye-glance behaviour. It implements a substantial incremental development of the what-if (counterfactual) simulation methodology, applied to rear-end crashes from the SHRP2 naturalistic driving data. This assessment combines (i) the impact of the change in drivers’ off-road glance behaviour due to the presence of the ADAS, and (ii) the safety impact of the ADAS alone. The results illustrate how the safety benefit of forward collision warning and autonomous emergency braking, in combination with adaptive cruise control (ACC) and driver assist (DA) systems, may almost completely dominate the safety impact of the longer off-road glances that activated ACC and DA systems may induce. Further, this effect is shown to be robust to induced system failures. The accuracy of these results is tempered by outlined limitations, which future estimations will benefit from addressing. On the whole, this study is a further step towards a successively more accurate holistic risk assessment which includes driver behavioural responses such as off-road glances together with the safety effects provided by the ADAS.

中文翻译：

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驾驶员辅助系统的整体评估：如何评估系统如何影响扫视行为和避免碰撞？

这项研究表明，需要对高级驾驶员辅助系统（ADAS）进行全面的安全影响评估，以及其对视线行为的影响。它对假设（反事实）仿真方法进行了实质性的增量开发，该方法适用于SHRP2自然驾驶数据中的追尾事故。该评估结合了（i）由于存在ADAS而对驾驶员越野目视行为的影响，以及（ii）仅ADAS的安全影响。结果表明，前向碰撞警告和自动紧急制动与自适应巡航控制（ACC）和驾驶员辅助（DA）系统相结合的安全优势几乎可以完全支配激活ACC的较长时间越野目视的安全影响DA系统可能会诱发这种情况。进一步，事实证明，这种影响对于诱发的系统故障具有鲁棒性。这些结果的准确性受到概述的局限性的限制，未来的估计将受益于此。总体而言，这项研究是朝着逐步更准确的整体风险评估迈出的又一步，该评估包括驾驶员的行为响应，例如越野目击以及ADAS提供的安全效果。