Having fire suppression systems would be necessary, in my opinion. As far as a fully automated system goes, that will be tough. Being a firefighter/EMT, I cannot tell you on how many "false alarms" I respond to due to sensors either reading wrong, or human error due to not keeping vents/doors open when such fumes (Carbon Monoxide) are introduced into the atmosphere.
That being said, there are many fire suppression systems that are utilized today. Whether they be from heat or chemical to even light triggered (some actually have LASERs in them which can decipher chemicals in the air which then triggers the fire suppression systems). The main issue with fire suppression systems is upkeep. It takes a lot of man-hours to ensure that they are correctly maintained, whether they be the water pipes (or halon for water-sensitive equipment), to the sensors, to the release valves, etc.
I've written a little post in the "Emergency Responders" topic of the "Emergency Response" section about staffing and a place where the personnel respond from. It would be a good idea to have most, if not all firefighters not only trained in fire attack, but in inspection and maintenance of the community's fire suppression/detection system. That way, there can actually be a fully staffed apparatus going throughout the city doing its inspection of the system and being able to immediately respond to any emergencies in the immediate area.
I'm sure I'll come up with more, but the spaghetti is smelling good right now. haha. Cheers!!