Usage patterns
大規模な〈事〉a large-scale ~ (event, project, disaster, etc.)
Large-scale construction work is being carried out in this area.
〈事〉を大規模に行うto carry out ~ on a large scale
The company carried out a new survey on a large scale.
〈事〉が大規模化するfor ~ to grow/expand into something large-scale
The damage from the typhoon is becoming large-scale.