photo by Matt Johnson, via Flickr creative commons

With the Los Angeles area on the verge of opening a new light rail line — the Expo Line — here’s a photo of another recent addition to the Western U.S. expanding rail system. Take a guess where it was taken — the answer is after the jump.

To submit a photo for the Art of Transit, post it to Metro’s Flickr group, email it to sourcemetro@gmail.com or Tweet it to @metrolosangeles with an #artoftransit hashtag. Many of the photos we’ve featured can be seen in these galleries on Flickr.

The photo shows the light rail line in Phoenix on a bridge over Tempe Town Lake. The 20-mile line opened in late 2008.