構内

1. Origins, structure, and basic meaning

• Structure: 構内 is read as こうない and means “premises” and “inside a facility”.
• Basic usage: It denotes the interior premises of a station and the grounds within a factory.

2. Common pitfalls and similar expressions

• 駅の構内 / 工場の構内では
  • Use 駅の構内 for the facility interior and 工場の構内では to set the scope of a rule.