Live Metrorail data now on Google Maps: delays, track work etc.

Just got an email from Google, who announced that they have launched live Metrorail data on Google Maps, both on the website and the phone app. 

What this means is that you can use Google Maps to plan your trip, and the get live data from Metro's Control Center, so they also include current service information like unplanned delays, track work and single-tracking. 

You can also use it for planning alternate routes, although the live information is just for Metrorail, not the bus.

It sounds like a good alternative for getting around the city. Here's more on their blog about it.