This
together with your reference to
emergency_service=
makes me think that that would be a great way of completely re-doing everything concerning emergency services!
Bring everything together into one scheme rather than the current mix of amenity / building / emergency:
landuse=emergency_service + emergency_service=police / fire / ambulance / rescue + police=station + station=“general_duties” / detectives / SWAT
Well & truly s discussion for a later time though!