{"id":"transit-diagram","no":229,"name":"Schematic Transit Diagram","ja":"スキーマティック路線図","era":"1933–","family":"情報デザイン","kind":"レイアウト","collection":"Dictionary expansion 13","addedAt":"2026-08-18","source":{"title":"London Transport Museum — Harry Beck's iconic design","url":"https://www.ltmuseum.co.uk/collections/stories/design/transforming-tube-map-harry-becks-iconic-design"},"reference":{"status":"verified","pageUrl":"https://www.ltmuseum.co.uk/collections/stories/design/transforming-tube-map-harry-becks-iconic-design","credit":"London Transport Museum — Harry Beck's iconic design","gallery":[{"imageUrl":"https://commons.wikimedia.org/wiki/Special:FilePath/Oslo%20Metro%20diagram%20no.svg?width=640","pageUrl":"https://commons.wikimedia.org/wiki/File:Oslo%20Metro%20diagram%20no.svg","credit":"スキーマティック路線図の現代例（CC BY-SA 3.0）"},{"imageUrl":"https://commons.wikimedia.org/wiki/Special:FilePath/U-Bahn%20Berlin%20-%20Netzplan.png?width=640","pageUrl":"https://commons.wikimedia.org/wiki/File:U-Bahn%20Berlin%20-%20Netzplan.png","credit":"ベルリンUバーン 路線ダイアグラム — Wikimedia Commons / CC BY-SA 4.0"}]},"essence":"地理的正確さを捨て、水平・垂直・45度の線と等間隔の駅だけで路線網を描く図法。ベックの1933年ロンドン地下鉄図が確立し、世界中の交通図の共通言語になった。","cues":["45度に制限された線","等間隔の駅","路線色のコード","地理からの独立"],"intents":["信頼","技術","静けさ"],"works":["乗換の多い路線網を、駅と接続だけ見えれば十分な図に整理するとき","地理より順序が大事な工程や系統を、線図で示すとき"],"recipe":{"type":"駅名は線に対して常に同じ角度で置き、書体と大きさを一つに固定する","layout":"線は水平と垂直と45度だけ、駅間は等間隔、混雑部だけ間隔を広げる","material":"路線ごとに一色、接続駅は白丸、背景は無地で線を最前面にする"},"avoid":"地理的な位置を少しずつ残そうとすると角度の規則が崩れ、正確でも読みやすくもない中途半端な図になる","colors":["#fbf5dd","#e52d3f","#245196"],"motif":"display","pair":["isotype","pictogram-system"],"study":["ハリー・ベック","電気回路図からの発想","ヴィネッリのNY地下鉄図論争"],"en":{"essence":"Discards geographic accuracy for horizontal, vertical and 45-degree lines with evenly spaced stations. Beck's 1933 London Underground diagram established it as the common language of transit maps worldwide.","cues":["Lines limited to 45 degrees","Evenly spaced stations","Color-coded lines","Independence from geography"],"works":["Reducing a complex network to what riders need, stations and interchanges","Showing a process or line where order matters more than geography"],"recipe":{"type":"Set station names at one constant angle in a single face and size","layout":"Only horizontal, vertical and 45 degrees, even spacing, widened where stations crowd","material":"One color per line, white circles for interchanges, plain background behind"},"avoid":"Trying to keep a little geographic accuracy breaks the angle rule, and the diagram ends up neither accurate nor easy to read.","study":["Harry Beck","the idea borrowed from circuit diagrams","the Vignelli New York subway map controversy"]},"links":{"page":"https://indexstyle.org/styles/transit-diagram","json":"https://indexstyle.org/api/styles/transit-diagram","designSpec":"https://indexstyle.org/styles/transit-diagram/design.md","imagePrompt":"https://indexstyle.org/styles/transit-diagram/prompt.txt"},"usage":{"license":"CC-BY-4.0","licenseName":"Creative Commons Attribution 4.0 International","licenseUrl":"https://creativecommons.org/licenses/by/4.0/","attribution":"IndexStyle — https://indexstyle.org","attributionUrl":"https://indexstyle.org","scope":"Original IndexStyle text and structured data. Reference images, quoted works, and third-party material are excluded and retain their own rights."}}