{"id":"signal-flags","no":431,"name":"Signal Flags","ja":"国際信号旗","era":"1857–","family":"記号体系","kind":"スタイル","collection":"Dictionary expansion 21","addedAt":"2026-08-18","source":{"title":"The Flag Institute","url":"https://www.flaginstitute.org/"},"reference":{"status":"verified","pageUrl":"https://www.flaginstitute.org/","credit":"The Flag Institute","gallery":[{"imageUrl":"https://commons.wikimedia.org/wiki/Special:FilePath/ICS-flags.png?width=640","pageUrl":"https://commons.wikimedia.org/wiki/File:ICS-flags.png","credit":"国際信号旗の一覧"},{"imageUrl":"https://commons.wikimedia.org/wiki/Special:FilePath/International%20Code%203%3B%20International%20Code%204%20RMG%20RP%2020%202.jpg?width=640","pageUrl":"https://commons.wikimedia.org/wiki/File:International%20Code%203%3B%20International%20Code%204%20RMG%20RP%2020%202.jpg","credit":"信号旗の図版（グリニッジ海事博物館）"}]},"essence":"海上で文字と定型文を伝える旗の体系。遠距離からの識別だけを目的に選ばれた高コントラストの幾何学は、機能が生んだ抽象デザインの傑作群になった。","cues":["高コントラストの幾何学","遠距離識別の設計","一旗一字と定型文","檣頭に連なる掲揚"],"intents":["信頼","技術","高揚"],"works":["一次資料と代表作から成立条件を比較する","別媒体へ応用できる構成原理を取り出す"],"recipe":{"type":"参照作品の文字・記号・スケールを観察する","layout":"視線と情報を支配する構造を一つ抽出する","material":"時代・地域・制作工程に固有の素材と挙動を確認する"},"avoid":"表面的な記号へ還元せず、時代・地域・技術・制作主体の文脈を確認する。","colors":["#e9e6dd","#67635d","#171615"],"motif":"notation","pair":["heraldry","pictogram-system"],"study":["国際信号書","トラファルガーの信号","セマフォアとの併用"],"en":{"essence":"The flag system for spelling letters and set phrases at sea. High-contrast geometry chosen solely for distant legibility became a masterpiece collection of abstraction born from function.","cues":["High-contrast geometry","Designed for distance","One flag, one letter","Hoists strung to the masthead"],"works":["Comparing primary sources and canonical works","Extracting principles that transfer to other media"],"recipe":{"type":"Observe the letters, signs and scale of reference works","layout":"Extract the one structure that governs gaze and information","material":"Verify the materials and behaviors specific to era, region and process"},"avoid":"Don't reduce it to surface signs. Verify the context of era, region, technology and makers.","study":["the International Code of Signals","the Trafalgar signal","use alongside semaphore"]}}