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.
oh, wow
the car drop-off/pick-up circuit gave it away as a school, but it never occurred to me that they'd start designing the buldings around the possibility of shooters