稼働率

• 読み: かどうりつ
• ローマ字: kadouritsu
• 漢字の分解: 稼 (ka) — earn, work; 働 (do) — work, labour; 率 (ritsu) — rate, ratio
• 発音: /ka.doː.ɾi.tsɯ/

意味

Operating rate; utilisation rate; uptime. The ratio of actual operating time or output to the theoretical maximum, expressed as a percentage.

Applied to factories, machines, servers, hotel rooms, and any asset with a finite capacity. A high 稼働率 indicates efficient use of resources; a low rate signals idle capacity or downtime. In manufacturing, it is a key performance indicator (KPI) for production efficiency. Also used in service industries such as hospitality and transport.

例文

1. 工場の稼働率が80%を下回ったため、一部ラインの停止を検討している。
2. 稼働率を向上させるには、設備のメンテナンス体制を抜本的に見直す必要がある。
3. データセンターのサーバー稼働率は常時99.9%に保たれている。

使い方ガイド

場面: manufacturing, IT infrastructure, hospitality, operations management

トーン: technical

起源と歴史

Compound of 稼働 (operation, being in service — from 稼 to earn/work + 働 to work) and 率 (rate, ratio). The term became widespread with Japan's post-war industrial expansion.

文化的背景

時代: Post-war–Modern

世代: Adults

社会的背景: Business/Engineering