511 is your source for Bay Area traffic, transit, carpool, vanpool and bicycling information. Free and available whenever you need it — 24 hours a day, 7 days a week — from anywhere in the Bay Area. Call 511 or visit 511.org.

Noah Berger

Real-time Travel Information Wherever You Are

Visit 511.org

511.org’s resources include:

  • Traveler alerts
  • An interactive map, with traffic, transit, carpool and biking information layers
  • A single source for tweets from 511 and partner agencies
  • Resources for traffic, transit, paratransit, Clipper® cards, RTC discount cards, carpool, vanpool, bicycling, Express Lanes and park ‘n ride lots

Call 511

The most popular real-time traveler information resources are available by calling 511, and asking for:

  • Departure times
  • Traffic conditions
  • Freeway Assist
  • Carpool information
  • Vanpool information
  • Express Lanes
  • Paratransit

These services and more are available when you call 511 for free.

511 Text Alerts

Sign up for 511 emergency text alerts:

  • Text 511Alert (no space) to 888777
  • An automated text response will confirm your registration
  • This service is free; text and data rates may apply

511 on Social Media


MTC operates 511 in partnership with:

  • California Department of Transportation
  • California Highway Patrol
  • Dozens of public transit operators
  • Carpool organizations around the Bay Area