Abstract Evacuees within fire-affected buildings may have to escape through smoke-filled corridors without the aid of lighting, with a high probability of failing to escape. It is thus of vital importance to enhance evacuation safety procedures. It is equally necessary to study changes in walking speeds in situations of fire escapes in order to accurately estimate time required to escape. This paper focuses on measuring changes in walking speeds of evacuees, as influenced by emergency signs, smoke, and illumination. Participants, 20 non-disabled individuals with normal vision, were made to individually traverse a corridor in which conditions were controlled, including the presence/absence of an emergency exit sign, smoke density, and ceiling lights. Changes in walking speeds under the three aforementioned conditions, including smoky or blackout conditions, were accurately measured and their influences on walking speeds were identified. The results will be useful to estimate evacuation time in situations of fires.

中文翻译：

---

在烟雾缭绕的走廊中点亮的紧急标志和照明设置对步行速度的影响

摘要 受火灾影响的建筑物内的疏散人员可能不得不在没有照明帮助的情况下通过烟雾缭绕的走廊逃生，极有可能无法逃生。因此，加强疏散安全程序至关重要。同样有必要研究火灾逃生情况下步行速度的变化，以便准确估计逃生所需的时间。本文重点测量受紧急情况标志、烟雾和照明影响的撤离人员步行速度的变化。参与者是 20 名视力正常的非残疾人，他们被要求单独穿过一个条件受到控制的走廊，包括紧急出口标志的存在/不存在、烟雾密度和天花板灯。上述三种情况下步行速度的变化，包括烟雾或停电条件，都被准确测量，并确定了它们对步行速度的影响。结果将有助于估计火灾情况下的疏散时间。