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<p>Early warning systems should balance safety and mobility, especially where a few lifeline roads connect remote communities. This article examines Iceland’s Short Message Service (SMS) avalanche warning service as an impact-based early warning system in the context of road safety. It explores how SMS alerts and resulting road closures shape trust in the Icelandic Road and Coastal Administration (Vegagerðin), perceived safety, and travel behavior. An online census-style survey targeted all 1,704 registered SMS users in the country and received 545 valid responses (32.2%). Analysis relied on descriptive statistics and coding of open-ended comments.&#xa0;Respondents reported high awareness of avalanche danger levels and strong trust in Vegagerðin’s closure decisions. Most participants felt safer because of the SMS service and were not bothered by precautionary false alarms, although behavioral responses varied by warning type and region. Residents of the Westfjords, who depend on lifeline roads, were more likely to continue traveling under elevated danger. Confusion between SMS A (heightened caution) and SMS B (uncertainty) indicates that message design influences protective action. Open comments showed broad satisfaction with the system but called for clearer terms, earlier warnings, more informative follow-up messages, and expanded geographic coverage. The findings indicate that Iceland’s SMS system functions as a trusted, low-barrier tool that broadly supports people-centered early warning objectives while also revealing important gaps. Enhancing message clarity, strengthening outreach to younger and non-Icelandic-speaking drivers, and aligning warning practices more closely with local mobility constraints could further improve the contribution of SMS-based alerts to road safety and avalanche risk management.</p>

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Balancing Safety and Mobility: Experience with Iceland’s SMS Avalanche Warning System

  • 期刊论文

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  • 发表日期：

    2026年5月7日

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  • Matthias Kokorsch

摘要

Early warning systems should balance safety and mobility, especially where a few lifeline roads connect remote communities. This article examines Iceland’s Short Message Service (SMS) avalanche warning service as an impact-based early warning system in the context of road safety. It explores how SMS alerts and resulting road closures shape trust in the Icelandic Road and Coastal Administration (Vegagerðin), perceived safety, and travel behavior. An online census-style survey targeted all 1,704 registered SMS users in the country and received 545 valid responses (32.2%). Analysis relied on descriptive statistics and coding of open-ended comments. Respondents reported high awareness of avalanche danger levels and strong trust in Vegagerðin’s closure decisions. Most participants felt safer because of the SMS service and were not bothered by precautionary false alarms, although behavioral responses varied by warning type and region. Residents of the Westfjords, who depend on lifeline roads, were more likely to continue traveling under elevated danger. Confusion between SMS A (heightened caution) and SMS B (uncertainty) indicates that message design influences protective action. Open comments showed broad satisfaction with the system but called for clearer terms, earlier warnings, more informative follow-up messages, and expanded geographic coverage. The findings indicate that Iceland’s SMS system functions as a trusted, low-barrier tool that broadly supports people-centered early warning objectives while also revealing important gaps. Enhancing message clarity, strengthening outreach to younger and non-Icelandic-speaking drivers, and aligning warning practices more closely with local mobility constraints could further improve the contribution of SMS-based alerts to road safety and avalanche risk management.