Mapping the Regional Express Rail.

“In its 1996 Third Regional Plan, the Regional Plan Association describes a rapid transit line in Brooklyn, Queens, and the Bronx that could be built almost entirely on pre-existing rail rights of way and would connect with at least twenty existing subway lines. The so-called “Triboro RX” (“TRX” for short) presents a unique opportunity to provide mobility and accessibility to New Yorkers living or working within these three boroughs, at a fraction of the cost of most transit projects of similar size. In my part-time internship at the RPA, which ends today, the lion’s share of the work I have done has focused on fleshing out the idea of this line.” And he did it with mostly open source tools: GPL mapping and GIS software, GPS to digital camera sync, Google Map maship, population and commuter demand modeling... Mike’s data sources and results are up on his TRX wiki.