The effectiveness of lane departure warning systemsA reduction in real-world passenger car injury crashes
The effectiveness of lane departure warning systemsA reduction in real-world passenger car injury crashes
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DOI：
10.1080/15389588.2016.1230672
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发表时间：
2017-01-01
影响因子：
2
通讯作者：
Tingvall, Claes
中科院分区：
文献类型：
--
作者：
Sternlund, Simon;Strandroth, Johan;Tingvall, Claes
目的：本研究的目的是估计在车辆车道偏离警告（LDW）和车道保持辅助（LKA）系统在减少相关的现实世界中的乘用车伤害crashs.Methods的安全效益：该研究采用了诱导暴露方法，LDW/LKA敏感和不敏感的碰撞进行了比较沃尔沃乘用车汽车配备和不LDW/LKA系统。这些碰撞与汽车品牌、型号、车型年份和技术设备相匹配，即称为城市安全（CS）的低速自动紧急制动（AEB）。数据提取自瑞典交通事故数据采集数据库（STRADA），包括1，853名驾驶员受伤的碰撞，涉及146 LDW配备汽车，11 LKA配备汽车，和1，696汽车没有LDW/LKA system.Results：分析表明，LDW/LKA系统在减少车道偏离碰撞的积极作用。据估计，LDW/LKA系统可以减少瑞典道路上的正面碰撞和单车伤害事故，速度限制在70至120 km/h之间，路面干燥或潮湿（即，未被冰雪覆盖）降低53%，下限为11%（95%置信区间[CI]）。这一减少对应于减少30%的下限为6%（95%CI）的所有正面和单车驾驶员受伤crashes（包括所有的速度限制和所有的路面条件）。结论：LDW/LKA系统估计降低驾驶员受伤的风险，在碰撞类型的系统是为了防止，即正面和单车碰撞。虽然这些都是重要的发现，但它们是基于一个小的数据集。因此，需要进一步的研究来评估LDW/LKA系统在真实世界条件下的有效性，并区分技术解决方案之间的有效性（即，LDW和LKA）。
Objective: The objective of this study was to estimate the safety benefits of in vehicle lane departure warning (LDW) and lane keeping aid (LKA) systems in reducing relevant real-world passenger car injury crashes.Methods: The study used an induced exposure method, where LDW/LKA-sensitive and nonsensitive crashes were compared for Volvo passenger cars equipped with and without LDW/LKA systems. These crashes were matched by car make, model, model year, and technical equipment; that is, low-speed autonomous emergency braking (AEB) called City Safety (CS). The data were extracted from the Swedish Traffic Accident Data Acquisition database (STRADA) and consisted of 1,853 driver injury crashes that involved 146 LDW-equipped cars, 11 LKA-equipped cars, and 1,696 cars without LDW/LKA systems.Results: The analysis showed a positive effect of the LDW/LKA systems in reducing lane departure crashes. The LDW/LKA systems were estimated to reduce head-on and single-vehicle injury crashes on Swedish roads with speed limits between 70 and 120 km/h and with dry or wet road surfaces (i.e., not covered by ice or snow) by 53% with a lower limit of 11% (95% confidence interval [CI]). This reduction corresponded to a reduction of 30% with a lower limit of 6% (95% CI) for all head-on and single-vehicle driver injury crashes (including all speed limits and all road surface conditions).Conclusions: LDW/LKA systems were estimated to lower the driver injury risk in crash types that the systems are designed to prevent; that is, head-on and single-vehicle crashes. Though these are important findings, they were based on a small data set. Therefore, further research is desirable to evaluate the effectiveness of LDW/LKA systems under real-world conditions and to differentiate the effectiveness between technical solutions (i.e., LDW and LKA) proposed by different manufacturers.