Spoiler
It's an elementary school.
Lafayette, Louisiana is so car dependent that their brand new elementary school is built like an industrial center where trucks line up to deliver and pick up goods.
All of this for a demographic (kids) that can't even drive.
Wouldn't you want something circular to break the shooters line of sight
If I understand the question, a circular shape or arrangement would still give them direct line of sight on the curve's normal angle.
You want to avoid having a central spot to shoot from
and instead emulate the trench zigzag pattern to the extent that is reasonable.
I say reasonable as if anything about this is.