Friday, August 31, 2012

Ghostly GTFS Skyscraper

This is not some ghostly skyscraper but a collection of all the space-time paths from the public transport system in Madrid for a single day (z = time of the day). Click on the picture itself for a larger version.  I am working on some code that can eventually calculate the areas of spatio-temporal accessibility (travel time isolines) from point locations using the original (General Transit Feed Specification) GTFS data. This is the first step I guess....

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