Disaster and emergency
Fireworks display launch layout and safety distances (No. 10, 5 and 3 shells, Class 2 consumption site)
Fireworks safety distances, a circle per shell size
This drawing comes from one YAML file. No shape was moved by hand.
Notes in the source (in Japanese)
1 px = 2 m。円が図の中身で、飾りではない。
火薬類取締法施行規則に基づき、玉の大きさごとに距離が決まっている(埼玉県煙火消費技術基準 別表 1)。測り方は消費場所から通路等までの水平最短距離。
円の中に、観覧席・通路・建物を入れない。 これが図を描く理由そのもの。
3 で割ると寸になる。30cm = 10 号 = 尺玉。同じ号数でもポカ物と割物で距離が違う(割物のほうが遠い)。
強風(風速 10m/s 以上、または強風注意報)では打ち揚げない。風下は火の粉が流れるので、風向計を図に載せる。
地名はすべて架空。
Source (YAML)
examples/gallery/93-花火大会の保安距離図.zumen.yaml
More in this field
Escape routes on a third floor: two ways out of every room to a staircase, with the travel distance and the fire doors and extinguishers along the way
Shelter layout: 3.5 sq m a person, and how many toilets
Crowd plan: how many can flow out against how many come in
Extinguishers and hose reels, measured two different ways
Sprinkler layout: area per head and spacing, decided together
Egress plan: three lengths answering three questions
Fire alarm devices: spacing is a circle, not a square
Not a picture of the fire - the way out is written on it