Show HN: DC Red Line Metro with Accurate Track Layout

This web page shows the real-time location of the trains in Washington DC's Red Line. It can be helpful to know when/where a delay is occurring and if the trains are single-tracking.

This is my first foray into web programming, so I'm interested in any feedback you might have.

Love this, as a semi-frequent DC commuter (I live out by Shady Grove)

It'd be helpful if you put what each thing does (what each pipe is equivalent too, the red, which way is to Shady Grove vs to Glenmont)

Thanks for sharing!

Very cool, how did you build it?