Metro's new A Line extension to the San Gabriel Valley opened on Friday morning, providing connections throughout Los Angeles County.

The A Line extension features four new stations in Glendora, San Dimas, La Verne/Fairplex and Pomona North.

The $1.5 billion project adds over nine miles of light rail to the already existing 48.5-mile Metro A Line. The new extension makes the A Line the longest light rail line in the world, according to Metro.

The extension project is the ninth project to be completed as part of Metro's Twenty-Eight by '28 initiative, which aims to enhance the region's transit infrastructure in time for the 2028 Summer Olympic and Paralympic Games.

Trains on the A Line between the stations will run every eight minutes during peak hours with service from 4 a.m. to mid

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