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Re:Interactive NYC taxi heatmap by uberneo on Monday October 20, 2014 @08:06PM (#8485238)
Where have you got this data .. also any points about the technologies used?
Re:Interactive NYC taxi heatmap by ImJasonH on Wednesday October 22, 2014 @11:54AM (#8493281)
The data is from http://chriswhong.com/open-data/foil_nyc_taxi/ -- I pulled 10k random pickups from each day/time for the heatmaps.

I used http://leafletjs.com/ and https://github.com/Leaflet/Leaflet.heat for the visualization.

Re:Interactive NYC taxi heatmap by johnm111888 on Monday October 20, 2014 @08:25PM (#8485297)
NYC has a open data policy. http://iquantny.tumblr.com/ has great analysis and commentary on a lot of the open NYC data that you might find interesting.