Different Double.
Altamont Corridor Express (ACE) F40PH no. 3102 and SC-44 Charger no. 3110 are seen shoving train 08 across the high trestle over Altamont Pass Road.
Where once there was only one commuter carrier, Southern Pacific between San Jose and San Francisco, today there are three: Caltrain (former SP), Altamont Commuter Express, and the newest, SMART (Sonoma-Marin Rapid Transit).