To the best of our ability, we try to separate these three areas and minimize the pedestrian/vehicle conflict points. An open question related to traffic control plans is how much storage should be provided for cars that are dropping off/picking up children.
I recently stumbled on the North Carolina DOT’s site related to schools. They collected a lot of queuing data at schools and put together a spreadsheet tool for analyzing school sites (check the upper right-hand corner of the website for the MSTA school calculator).
We should all be collecting localized traffic data, but the North Carolina DOT spreadsheet is a great starting point. It would be helpful if every state DOT would develop datasets similar to North Carolina’s. Starting with the DOT’s spreadsheet would be a great shortcut for each state.
If you’re new to school traffic operations, I also recommend checking out my blog series 7 Parts of an Effective School Traffic Safety Plan.