How public interest and concerns about autonomous vehicles change over time: A study of repeated cross-sectional travel survey data of the Puget Sound Region in the Northwest United States
How public interest and concerns about autonomous vehicles change over time: A study of repeated cross-sectional travel survey data of the Puget Sound Region in the Northwest United States
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公众对自动驾驶汽车的兴趣和担忧如何随时间变化：对美国西北部普吉特海湾地区重复横断面旅行调查数据的研究
DOI：
10.1016/j.trc.2021.103446
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发表时间：
2021
期刊：
影响因子：
--
通讯作者：
K. Goulias
中科院分区：
文献类型：
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作者：
Jingyi Xiao;K. Goulias
越来越多的研究试图提高我们对潜在的早期自动驾驶汽车（AV）采用者特征的了解。然而，公众对自动驾驶汽车的态度是否会随着时间的推移而改变，以及如何改变，人们知之甚少。通过对包括西雅图大都市区在内的普吉特海湾地区的多年横断面旅行调查数据，我们分析了对自动驾驶汽车感兴趣和关注程度不同的人口比例。利用结合二元logit模型和部分比例赔率模型的两部分模型来调查个人在自动驾驶汽车上的位置随时间的变化，控制他们的社会人口特征、旅行行为特征和建筑环境属性。我们发现，多年来，不熟悉自动驾驶汽车的人口比例有所下降，这可能是由于更多地接触到有关自动驾驶汽车的信息。在所有其他变量相同的情况下，个人对自动驾驶汽车的兴趣并没有随着时间的推移而改变，而他们的关注却随着时间的推移而增加。研究结果表明，介绍自动驾驶汽车采用优势的信息活动或教育计划，重点是自动驾驶汽车的安全方面，可能会改变公众的态度，这可能有助于实现更大的市场渗透。
A growing number of research attempts have been made to enhance our knowledge about the characteristics of the potential early Autonomous Vehicle (AV) adopters. However, little is known about whether the public attitudes towards AVs change over time and how. With a multiyear cross-sectional travel survey data of the Puget Sound Region that encompasses the Seattle metropolitan area, we analyzed the fractions of population with various levels of interest and concerns regarding AVs. A two-part model combining a binary logit model and a partial proportional odds model was utilized to investigate the change of individuals’ positions on AVs over time, controlling for their socio-demographic characteristics, travel behavior characteristics, and built environment attributes. We find that the percentage of population unfamiliar with AVs has declined over the years, which is probably due to a greater exposure to the information about AVs. All other variables being equal, individuals’ interest in AVs has not changed over time while their concerns have increased across time. The findings suggest that information campaigns or educational programs that introduce the advantages of AV adoption with a focus on the safety aspects of AVs could potentially alter public attitudes, which could help achieve greater market penetration.