BART Software Upgrade Reduces Rain Delays in San Francisco Bay Area
BART Software Upgrade Reduces Rain Delays in San Francisco Bay Area
US · Published Feb 25, 2026
BART's new software upgrade significantly reduces rain-related delays, allowing trains to maintain higher speeds in wet conditions.
The 'pre-braking actions' feature prevents wheel skidding, ensuring safer and more reliable train operation during rain.
This upgrade is part of BART's strategy to improve reliability and boost ridership post-pandemic, offering a more dependable service.
BART upgrades software to reduce rain delays
The Bay Area Rapid Transit (BART) has implemented a software upgrade designed to mitigate delays caused by rain. Previously, trains had to slow down significantly during wet weather, leading to numerous delays. The new software allows trains to maintain speeds of up to 70 miles per hour, even on wet tracks, by incorporating 'pre-braking actions' that prevent wheel skidding. This upgrade has shown promising results, with a dramatic reduction in delays during rainy periods. Specifically, rain-related delays decreased from 11,903 in July-December 2024 to only 128 in the same period of 2025. The 'pre-braking actions' are crucial for maintaining speed without compromising safety, particularly important in the frequently rainy San Francisco Bay Area.
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