Useful info for a New PC

This is my first ever Reddit post so bare with me on this,

I'm a new PC about to go out onto Division/Borough/Area, and I've been creating a list of notes on things that aren't mentioned in training but are beneficial to know—for example, knowing where the trauma hospitals are on my patch, arterial roads etc. Does anyone have any valuable things to consider in this vein that due to my shiny probie status I may be neglecting? More so things that I can get a knowledge of prior then physical, operational aspects.