Although such shelters were built in various feudal domains, shelters built in urban area such as Edo and Osaka were exceptionally large in scale, because which should accommodate refugees evaded from other provinces.
地方の諸藩でも盛んに作られたが、地方から逃散した人々などが集まる江戸や大阪などの都市部では、特に大規模な収容施設となった。