This article studies self-reported route change behavior of 4,706 licensed drivers in the continental U.S. through a stated preference survey when they encounter road sign messages. Respondents are asked to score their likelihood of route change and speed change on a 5-point Likert scale to three messages: (1) “Heavy Traffic Due to Accident,” (2) “Road Closure Due to Police Activity,” and (3) “Storm Watch, Flooding in Area Soon.” We fulfill three objectives. First, we identify the relationship between the route change behavior and socioeconomic and attitudinal-related factors. Second, we explore the impact of road sign messages with different contents on route change behavior. Third, we test the association between route change and speed change behaviors. The results demonstrate that: (1) the response of participants to compromised dynamic message signs varies according to the socioeconomic standing and attitude of participants, (2) the response of participants varies under different messages, and socioeconomic and attitudinal factors impact this differentiation, and (3) the likelihood of route change is positively associated with slowing down. This means, in practice, a malicious adversary has the potential to shunt and disturb traffic by disseminating fabricated messages and engineering route choice of drivers.

中文翻译：

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潜在现实的人造路标信息对路线变更的影响

本文通过一项既定的偏好调查研究了美国大陆 4,706 名持照司机在遇到道路标志信息时自我报告的路线变更行为。受访者被要求在 5 点李克特量表上将他们改变路线和速度变化的可能性打分到三个信息：（1）“由于事故造成的交通拥堵”，（2）“由于警察活动导致道路封闭”，和（3 ）“风暴观察，很快就会在该地区泛滥。” 我们实现三个目标。首先，我们确定了路线改变行为与社会经济和态度相关因素之间的关系。其次，我们探讨了不同内容的路标信息对路线变更行为的影响。第三，我们测试了路线变化和速度变化行为之间的关联。结果表明：(1) 参与者对受损动态信息标志的反应因参与者的社会经济地位和态度而异，(2) 参与者在不同信息下的反应不同，社会经济和态度因素会影响这种差异，以及 (3) 可能性路线变化与减速呈正相关。这意味着，在实践中，恶意对手有可能通过传播伪造的消息和设计司机的路线选择来分流和扰乱交通。