This is really intense! I salute the mind level that conceives such a concept (and comes up with a cool visualization).

In case you haven't discovered it - you can click-and-drag your mouse across the lines to make sounds in addition to waiting for the lines to 'pluck' themselves

This is very cool. Here's our way of visualizing buses driving around in a novel way: http://labs.transloc.com/streetview/

Loading Sound is always at 0% for me.

It's wonderful, if a little odd, to think of the NYC subway as a plucked guitar, versus the familiar steel-on-steel "ka-chunk, ka-chunk" as the trains rumble on the (unwelded) tracks.

They should crash and shatter, like lightcycles.

This is amazing. Would you consider offering a tutorial to implement alternate systems(other cities)?

This is pretty creative - does anyone have suggestions on how I can convert this into a screensaver?

Open up a few tabs for a more fun and chaotic track!

Though I am having some syncing issues when one of the tabs is active.

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Interesting, it's creative and artistic engineering.