Earthquakes have been destructive events for the built environment, particularly for urban areas due to the concentration of people and constructions. Two of the important effects are damaged or destroyed houses and the homeless. In these scenarios, the provision of temporary accommodation solutions is one of the most important post-disaster actions to provide for minimum living conditions. However, the implemented solutions frequently end in undesirable outcomes for victims and cities.

Pre-disaster planning has been considered the best way to minimize consequences and promote better emergency management. This way, the paper presents a tool to estimate temporary accommodation units needs (TETAN) aiming to forecast necessities in terms of space and resources to supply temporary units after hypothetical scenarios of damage and destruction caused by earthquakes and defined according to the modified Mercalli Scale. The tool is assessed in two cities with high seismic risk, analysing and discussing the results, as well as suggesting measures and strategies which can be considered in the urban planning of both cases, not only for pre-disaster planning of temporary accommodation but also for built environmental risk reduction. These strategies provide for the connection of pre-disaster planning and urban planning, increasing the resilience of cities and their inhabitants.

由于人和建筑物的集中，地震已成为建筑环境的破坏性事件，特别是对于城市地区。其中两个重要影响是房屋受损或毁坏以及无家可归者。在这些情况下，提供临时住所解决方案是灾后提供最低生活条件的最重要行动之一。但是，已实施的解决方案常常以对受害者和城市不利的结果而告终。

灾前规划被认为是最大程度地减少后果并促进更好的应急管理的最佳方法。这样，本文提供了一种估计临时住宿单元需求的工具（TETAN），旨在根据假设的地震造成的破坏和破坏情景并根据修改后的Mercalli量表对提供临时单元的空间和资源进行预测。在两个地震风险较高的城市中对该工具进行了评估，分析和讨论了结果，并提出了在两种情况下的城市规划中都可以考虑的措施和策略，不仅用于临时居所的灾前规划，还包括降低环境风险。这些策略提供了灾前规划与城市规划之间的联系，