Department of Highway and Traffic Engineering, Hanoi University of Civil Engineering, Hanoi, Vietnam.
Traffic Inj Prev. 2023;24(6):445-451. doi: 10.1080/15389588.2023.2223328. Epub 2023 Jun 15.
Reducing drink driving amongst motorcyclists has been deemed as a potential area for improving road traffic safety in most developing countries. However, research efforts paid on determining the underlying factors of drink driving intention amongst this road user group has been still scant. To fill this gap, this study explored the factors influencing motorcyclists' intention to drink and drive in Vietnam.
A questionnaire survey was conducted with a sample of 451 Vietnamese motorcycle riders. The theory of planned behavior (TPB) was utilized as a frame of reference to address this issue. Apart from the TPB standard variables (i.e., attitudes, subjective norms, perceived behavioral control) and extended TPB variables which have been previously investigated in literature (i.e., descriptive norm, past behavior, and risk perception), the present research introduced four extended factors to TPB including social sanctions, physical loss, perception of drink driving enforcement, and perceived ability to influence traffic police to avoid punishment.
The results showed significant effects of attitudes toward drink driving, perceived behavioral control, past behavior and social sanctions on motorcyclists' drink driving intention. In addition, the data showed that both new context-based variables (i.e., "perception of drink driving enforcement" and "perceived ability to influence traffic police to avoid punishment") were significantly related to drink driving intention.
Various underlying factors of motorcyclists' intention to drink and drive were identified under the TPB framework. The findings provide useful information for road safety interventions in Vietnam. In particular, making enforcement activities more visible to motorcyclists and putting more effort into reducing corruption and other illegal activities in the traffic police sector could be effective measures for obtaining desirable drink driving behaviors.
减少骑摩托车者的酒后驾车行为已被认为是大多数发展中国家改善道路交通安全的一个潜在领域。然而，对于确定这一道路使用者群体的酒后驾车意图的潜在因素的研究工作仍然很少。为了填补这一空白，本研究探讨了影响越南摩托车手酒后驾车意图的因素。
对 451 名越南摩托车骑手进行了问卷调查。本研究利用计划行为理论（TPB）作为参考框架来解决这个问题。除了 TPB 标准变量（即态度、主观规范、感知行为控制）和文献中已经研究过的扩展 TPB 变量（即描述性规范、过去行为和风险感知）外，本研究还将四个扩展因素引入 TPB，包括社会制裁、身体损失、对酒后驾车执法的看法和感知影响交通警察避免惩罚的能力。
结果表明，对酒后驾车的态度、感知行为控制、过去行为和社会制裁对摩托车手酒后驾车意图有显著影响。此外，数据显示，两个新的基于情境的变量（即“对酒后驾车执法的看法”和“感知影响交通警察避免惩罚的能力”）与酒后驾车意图显著相关。
在 TPB 框架下确定了摩托车手酒后驾车意图的各种潜在因素。这些发现为越南道路安全干预提供了有用的信息。特别是，使执法活动对摩托车手更加可见，并努力减少交通警察部门的腐败和其他非法活动，可能是获得理想的酒后驾车行为的有效措施。
