1A plan — thinking out the purpose, steps, and schedule for something in advance; also the resulting plan itself. Used broadly for trips, work projects, urban development, and more.
夏休みの旅行計画をそろそろ立てないと。
I need to start planning our summer vacation trip soon.
この都市開発計画には10年かかる見込みだ。
This urban development plan is expected to take ten years.
天気のせいで計画を変更せざるを得なかった。
We had no choice but to change our plans because of the weather.
彼は計画通りに物事を進めるのが得意だ。
He's good at getting things done according to plan.