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					Originally Posted by  accord1999
					 
				 
				Police and fire needs also scale with population, especially given that their range is less in slower more built-up areas. Which is why there is a greater concentration nearer the core, and incidents requiring police and fire resources are also higher in the core. A new community has much fewer incidents and are almost never need (or get) new fire or police stations, they are serviced by stations in older communities. 
  
			
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This is a very odd statement to me to make in this discussion. 
More population density means more services, yes, but you use it as it is a shot at the higher density core. 
The general underline assumption of density is - less services per person is required, which you don't address at all? 
You then posted a crime map which doesn't show anything other than more people equals more crime. The crime map is not crime per person, its total crime in an area. 
Each "area" varies in density, total population and size- the crime map is NOT a useful tool in comparing sections of the city unless you normalize it by something beyond absolute totals.
Edit: and  nevermind wealth inequality  normalizations...