Update #1
created project
Note: this project is heavy on data manipulation and coding.
I set up demo to see if PostGIS could pull crimes that are nearest Septa regional rail stations and heat map them with Leaflet and heatmap.js. It went a little viral indicating a demand for stuff like this:
http://www.nbcphiladelphia.com/news/local/Developer-Maps-Crimes-Near-SEPTA-Stops-229590131.html
http://technical.ly/philly/2013/10/23/septa-regional-rail-crime-map/
and trashed by philebrity for having no context what so ever.
http://www.philebrity.com/2013/10/22/dept-of-interactive-maps-septa-heatmap-shows-amount-of-violent-crime-near-regional-rail-stations/
created project