Following from my post yesterday in which I introduced the subjects of privacy and purpose. I will provide two links to illustrate the different approaches to these considerations. The first is from London and the second is from Los Angeles. Both maps are police generated for the public.
http://maps.met.police.uk/
http://www.lapdcrimemaps.org/
The London map is based on polygons to protect privacy, the LA map is based on points with information about time and place.
The LA map provides far more information which the viewer can use to be safer. In my view the policing purpose of public safety and crime prevention has been wrongly been superceded by privacy in London.
I will of course return to this subject because there is much more to be said.
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