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Traffic signs or road signs are signs erected at the side of or above roads to give instructions or provide information to road users. The earliest signs were simple wooden or stone milestones.
Road signs are vital for safe driving, providing information about the road ahead, guiding traffic flow, and ensuring the safety of all road users. This guide introduces the basics of road signs.
Learn about the different types of traffic signs in California, such as regulatory, warning, guide, temporary, services and railroad crossing signs. See photos and examples of each sign and what they mean for drivers.
Learn the different types of traffic signs and their meanings, such as regulatory, warning, guide, service, and temporary signs. Find out how to interpret the MUTCD sign designation codes and examples of each type of sign. Find out how to stay safe on the road with traffic signs.
Real-time traveler information enables the traveling public to make informed transportation choices. 511 is a three-digit dialing code designated by the Federal Communications Commission (FCC) in 2000, making it easy for users to access traveler information services.
Visibility can be achieved through a variety of design strategies, including intersection “daylighting,” design for low-speed intersection approaches, and the addition of traffic controls that remove trees or amenities that impede standard approach, departure, and height sight distances.
Traffic Alerts. View and sort current incidents, construction, and events. Read about long-term construction projects. See what's on the Caltrans Message Signs. Learn More. Transit Alerts. View and sort delays, re-routes, and service changes. Learn what to do during a transit disruption. Learn More. Emergencies.
