noun
secondary evacuation shelter; shelter for people needing extra care
A shelter set up after initial evacuation, specifically for those requiring additional support such as the elderly, disabled, or people with medical needs. Often contrasted with 一次避難所 (primary shelter).
災害時には、まず一次避難所へ行き、その後、高齢者は二次避難所に移動します。
In a disaster, people first go to a primary shelter, and then the elderly move to a secondary shelter.
二次避難所では、医療スタッフが常駐している。
Medical staff are stationed at the secondary evacuation shelter.
Compound of 二次 (secondary) + 避難所 (evacuation shelter). The term is used in disaster management contexts.