Whether BART (Bay Area Rapid Transit) is "faster" than Caltrain depends on the specific route and the type of train service. BART has a higher top speed of 80 mph (typically 70 mph), whereas Caltrain locomotives traditionally max out at 79 mph. However, Caltrain’s "Baby Bullet" express service is often faster for long-distance travel between San Francisco and San Jose because it skips most intermediate stops, completing the journey in about 60 minutes. In contrast, BART is a high-frequency "metro" style system with more frequent stops, making it slower for long distances but much faster for traveling within the urban cores of San Francisco and Oakland. In 2026, the gap has narrowed significantly due to the Caltrain Electrification Project, which has introduced new electric trains with much faster acceleration and deceleration, allowing for more frequent and efficient service that rivals BART's "rapid transit" feel while maintaining superior long-range speeds.