In this paper, two public information campaigns were analysed. These were related to capacity reductions, caused by maintenance work, in two main road tunnels—at Smestad and Bryn in Oslo. The paper analyses the campaigns’ characteristics and their goal fulfilment. The usage of social media to inform and communicate with travelers and inhabitants is highlighted. We find a high level of outreach of the campaigns and satisfaction among travelers with the information received. However, there are substantial differences between the information campaigns. The Smestad campaign had clear elements of mass-media scaremongering. Here, it is reasonable to attribute the traffic reduction in the first days after the capacity reduction to the massive media headings in advance about possible congestion and chaos. In contrast, the Bryn campaign was more multi-faced and lasted longer. Through massive neighbourhood information and use of social media, this campaign extensively encouraged and advised travelers on how congestion could be avoided if people travelled less by cars during the rehabilitation phase. Further, the Bryn campaign directed social media posts and digital advertising towards specific groups at specific times, and by doing so exemplifying audience targeting and the use of information campaigns to legitimate public interventions. While traditional media provided a strong basis for mass information in the early stages of both tunnel rehabilitations, social media had a clear mediating role at Bryn. Last, while describing management of deviant traffic situations, the paper also feeds into discussions of how to facilitate urban-transport change towards reduced car usage.

中文翻译：

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使用公共信息降低道路通行能力：奥斯陆隧道修复过程中的调解策略研究

在本文中，分析了两个公共信息运动。这与奥斯陆 Smestad 和 Bryn 两条主要公路隧道因维护工作导致的容量减少有关。本文分析了这些活动的特点及其目标实现情况。强调使用社交媒体来通知旅行者和居民并与之沟通。我们发现活动的外展程度很高，旅行者对收到的信息感到满意。然而，信息运动之间存在重大差异。斯梅斯塔德运动明显带有大众媒体的恐吓成分。在这里，将容量减少后前几天的流量减少归因于关于可能的拥塞和混乱的大量媒体提前标题是合理的。相比之下，布林竞选活动更加多面且持续时间更长。通过大量的社区信息和社交媒体的使用，该活动广泛鼓励和建议旅行者，如果人们在康复阶段减少开车出行，如何避免拥堵。此外，布林运动在特定时间将社交媒体帖子和数字广告定向到特定群体，并通过这样做示范了受众定位和使用信息运动来合法的公共干预。虽然传统媒体在两个隧道修复的早期阶段为大众信息提供了强有力的基础，但社交媒体在 Bryn 中扮演着明显的中介角色。最后，在描述异常交通情况的管理时，