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FAQs

511 has FAQs for a variety of tools. If you don’t find the answer to your question from the options below, please send us your question.

Driving

The San Francisco Bay Area has 1,420 miles of highways, including about 350 miles of High Occupancy Vehicle (HOV) lanes, 160 miles of Express Lanes, 8 toll bridges and a Freeway Assist service. Before...

Alerts

What's disrupting the Bay Area's highways, bridges, and transit services? Get the travel information that matters to you. Up-to-the-minute updates on traffic incidents, road closures, transit disrupti...

Construction & Event Info

Find out about long-term construction projects and events.

Caltrans Message Signs

Check here for real-time traffic times and messages on the electronic signs.

Critical Alerts

Transit Data

511 SF Bay’s Portal for Open Transit Data. Data is free and available using a token.

511 Phone

511 has you covered when you need hands-free, voice-responsive traveler information. By calling 511, you have access to many of 511's Bay Area transportation resources.

Assistance on the Phone

Voice Recognition System 511 uses a state-of-the-art voice-recognition system to guide you through the menu options. Sometimes the system might have a difficult time recognizing your request due to on...

Phone Safety Tips

511 reminds travelers to drive safely and take extra precautions when calling 511 for current traffic conditions. Here are some tips to help you stay as safe as possible on your journey. For Everyone:...