construction
![](https://cdn.abcotvs.com/dip/images/15047159_070924-kabc-4pm-gold-line-testing-vid.jpg?w=660&r=16%3A9)
Light-rail testing underway on Foothill Gold Line extension
After years of construction, a billion-dollar extension of the L.A. Metro A-Line is now testing light rail trains on a 9.1-mile addition that will extend the line from Azusa to Pomona.
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