Education Minister Rob Stokes says he is open to trialling separate morning and afternoon schools in NSW to reduce traffic peaks and address the enrolment boom.

"Effectively having double schools by having morning and afternoon schools is one option, it's already being done in some countries," Mr Stokes said in response to a question at the launch of a new report into school design by architecture and engineering firm Arup on Tuesday.

NSW Education Minister Rob Stokes says new schools are being built to be adaptive. Credit:Brook Mitchell

"That would create problems in the middle of the day and we don't have any concrete plans to look at that at the moment because the resourcing implications would be significant, but how I'd like to look at that is by piloting it to see how it would work."

Mr Stokes also said that all schools, including private schools, are public buildings and should be opened up to the community.