Nguyen Helen, Coxon Kristy, Brown Julie, di Tanna Gian Luca, Angell Blake, Keay Lisa
School of Optometry and Vision Science, Faculty of Medicine & Health, The University of New South Wales, NSW, Australia; The George Institute for Global Health, Faculty of Medicine & Health, The University of New South Wales, NSW, Australia.
School of Health Sciences, and the Translational Health Research Institute, Western Sydney University, NSW, Australia.
J Safety Res. 2024 Dec;91:210-216. doi: 10.1016/j.jsr.2024.09.003. Epub 2024 Sep 21.
Advanced vehicle technologies (AVTs) can reduce the risk of crashing and serious injuries however their uptake remains low amongst older drivers. A discrete choice experiment (DCE) was used to investigate what vehicle features, including AVTs, are preferred in vehicle purchasing decision in older drivers.
Older drivers (≥65 years) completed a DCE containing 12 choice sets, with 2 vehicles to choose from, described by 4 attributes: Access, Fuel Efficiency, Cost, and AVTs. Conditional logistic models adjusting for age and sex, and then expanded to include a priori interactive terms for socio economic status, self-rated mobility limitations and anxiety/depression, and sex were run in R v4.2.2 with odds ratio (ORs) and 95% confidence intervals (Cls) reported. Marginal willingness to pay for more AVTs was estimated.
133 participants (mean age: 73.6 years; 66% males) completed the survey. Participants significantly preferred vehicles with better "Fuel efficiency" (OR 1.57, 95%Cl 1.44-1.71) and AVT inclusions (OR 1.29, 95%Cl 1.20-1.40), and were less likely to choose more expensive vehicles (per $5000 increase; OR 0.91, 95%Cl 0.86-0.99). "Access" did not influence choice between the two vehicle options. Those on a pension were price sensitive: twice as likely to choose a vehicle with better "fuel efficiency" and approximately 40 % less likely to choose a more expensive vehicle. Participants were willing to pay at most $1,604.17 (95%Cl $337.60-$3,174.50) extra for a car with AVTs that otherwise would cost $30,000.
Despite showing interest in AVTs, older adults place more importance on price and fuel efficiency, and therefore would only pay a modest amount to get a car with more technological features.
These results can help road safety professionals, industry and policy makers better communicate the value of AVTs to older drivers and help promote the uptake of AVTs and safety amongst older drivers.
先进车辆技术（AVTs）可以降低撞车风险和严重受伤风险，然而老年驾驶者对其采用率仍然较低。一项离散选择实验（DCE）被用于调查在老年驾驶者的车辆购买决策中，包括AVTs在内的哪些车辆特征更受青睐。
老年驾驶者（≥65岁）完成了一项包含12个选择集的DCE，每个选择集有2辆车可供选择，由4个属性描述：便利性、燃油效率、成本和AVTs。在R v4.2.2中运行条件逻辑模型，先对年龄和性别进行调整，然后扩展到包括社会经济地位、自评行动能力限制和焦虑/抑郁以及性别的先验交互项，并报告优势比（ORs）和95%置信区间（Cls）。估计了为更多AVTs支付的边际意愿。
133名参与者（平均年龄：73.6岁；66%为男性）完成了调查。参与者显著更喜欢具有更好“燃油效率”（OR 1.57，95%Cl 1.44 - 1.71）和包含AVT的车辆（OR 1.29，95%Cl 1.20 - 1.40），并且不太可能选择更昂贵的车辆（每增加5000美元；OR 0.91，95%Cl 0.86 - 0.99）。“便利性”不影响两种车辆选项之间的选择。领取养老金的人对价格敏感：选择具有更好“燃油效率”车辆的可能性是其他人的两倍，选择更昂贵车辆的可能性大约低40%。参与者愿意为一辆带有AVTs且原本价格为30000美元的汽车最多额外支付1604.17美元（95%Cl 337.60美元 - 3174.50美元）。
尽管对AVTs表现出兴趣，但老年人更看重价格和燃油效率，因此只会支付适度金额来购买具有更多技术特征的汽车。
这些结果可以帮助道路安全专业人员、行业和政策制定者更好地向老年驾驶者传达AVTs的价值，并有助于促进老年驾驶者对AVTs的采用和安全性。
