Pacific Surfliner in the context of "Caltrans"

Downtown Los Angeles (DTLA) is the central business district of the city of Los Angeles. It is part of the Central Los Angeles region and covers a 5.84 sq mi (15.1 km) area. As of 2020, it contains over 500,000 jobs and has a population of roughly 85,000 residents, with an estimated daytime population of over 200,000 people prior to the COVID-19 pandemic.

Downtown Los Angeles is divided into neighborhoods and districts, some overlapping. Most districts are named for the activities concentrated there now or historically, such as the Arts, Fashion, Banking, Theater, Toy, and Jewelry Districts. It is the hub for the city's urban rail transit system, as well as the Pacific Surfliner and Metrolink commuter rail system covering greater Southern California. Also located in downtown is the Civic Center, the administrative core of the city government.

The Gold Runner (formerly San Joaquins) is a state-supported passenger train service operated by Amtrak in California's San Joaquin Valley. As of 2025, the service operates seven daily round trips between its southern terminus at Bakersfield and Stockton. Of these, five continue to Oakland and two to Sacramento. Two additional Sacramento-bound round trips are scheduled to begin in fiscal year 2025.

The service is notable for its extensive network of dedicated Amtrak Thruway bus routes, which are integral to its overall performance. More than 55% of riders use a Thruway bus for at least one segment of their journey. These routes are timed to connect with train arrivals and departures, and offer service to destinations across the state, including Southern California (notably Los Angeles Union Station, where passengers can transfer to the Pacific Surfliner or Amtrak's long-distance services), San Francisco, the Central Coast, the North Coast, the High Desert (including Las Vegas), Redding, Reno, and the Yosemite Valley.