evacuation site; refuge shelter
Typically an outdoor open space designated for emergency evacuation, such as a park or school ground, distinct from indoor shelters (避難所).
In the event of an earthquake, please gather at the nearby evacuation site.
This park is designated as a tsunami evacuation site.
避難場所 is a broader official term for a designated safe gathering area, whereas シェルター usually denotes an actual enclosed structure offering protection.
Compound of 避難 (ひなん, 'evacuation') and 場所 (ばしょ, 'place').