Vehicle accidents at intersections are frequent, with approximately 165,000 intersection accidents happening annually in the United States. Common causes of these accidents include running red lights, disobeying traffic signals, misjudging signals, and failing to yield the right of way.

To become a safer driver and prevent accidents, it’s essential to familiarize yourself with the fundamental laws and rules of the road. These regulations are outlined in the California Drivers Handbook and specific sections of the California Vehicle Code. Understanding California’s intersection traffic laws is vital for safety and legal compliance.

1. Right-of-Way Rules:

One of the fundamental principles at intersections is the right-of-way, which determines who has priority to proceed. In California, right-of-way rules are established to ensure safe and orderly traffic flow. Here are some critical right-of-way rules:

• General Right-of-Way Rule: In situations where two vehicles simultaneously reach or enter an intersection, the driver positioned on the right is granted the right-of-way over the driver positioned on the left.

• Uncontrolled Intersections: At intersections without traffic control signals or signs, drivers must yield the right-of-way to any vehicle that arrives first or to the vehicle on their right if they both arrive simultaneously. Pedestrians crossing at such intersections always have the right-of-way.

• Traffic Signals: At intersections with traffic signals, drivers must follow the signal indications. Red means stop, green means go, and yellow indicates caution unless it is unsafe to stop.

2. Turning at Intersections:

Making turns at intersections involves specific rules to prevent accidents and maintain the flow of traffic:

• Left Turns: When making a left turn at an intersection, you must yield the right-of-way to oncoming traffic, including pedestrians until it is safe to proceed.

• Right Turns on Red:  In California, unless indicated otherwise by posted signage, motorists are allowed to execute a right turn at a red traffic signal as long as they come to a full stop and verify that it is safe to proceed, as long as there is no sign explicitly prohibiting such a turn.

3. Stop Signs and Yield Signs:

Intersections may have stop signs or yield signs to regulate traffic. Understanding how to respond to these signs is crucial:

• Stop Signs: Drivers must come to a complete stop at a stop sign, yield the right-of-way as required, and proceed only when it is safe.

• Yield Signs: At yield signs, drivers must slow down and yield the right-of-way to vehicles or pedestrians with the right-of-way. However, if the way is clear and safe, they can proceed without coming to a complete stop.

4. Left Turn on Red from a One-Way Street:

California law permits turning left from a one-way street onto another one-way street when facing a red signal unless posted otherwise. However, drivers must yield to any oncoming traffic and pedestrians.

5. Roundabouts:

Roundabouts are becoming more common in California. They are designed to improve traffic flow and reduce collisions. When navigating a roundabout:

• Enter the roundabout when there is a safe gap in traffic.

• Always yield to vehicles already inside the roundabout.

• Do not stop inside the roundabout unless necessary to avoid a collision.

6. Pedestrian Crosswalks:

California law requires drivers to yield the right-of-way to pedestrians in marked or unmarked crosswalks. Drivers must come to a complete stop if a pedestrian is crossing or approaching the same half of the roadway.

7. U-Turns:

U-turns are generally allowed in California unless there is a sign prohibiting them. However, they must be made safely and without interfering with other traffic.

8. Obstructed Intersections:

Drivers must avoid entering an intersection unless there is ample room on the opposite side to accommodate their vehicle without causing an obstruction to cross traffic. Engaging in intersection blockage can result in traffic congestion and disrupt the right-of-way for fellow drivers.

9. Bicycle Lanes:

When making a right turn at an intersection with a designated bicycle lane, drivers must merge into the bike lane only after ensuring it is safe to do so, and they must yield to any cyclists in the lane.

10. Special Situations:

California traffic laws include provisions for specific situations, such as emergency vehicles, school buses, and controlled-access highways. Drivers need to familiarize themselves with these rules to ensure compliance.

Understanding California’s intersection traffic laws is essential for safe and lawful driving. Adhering to right-of-way rules, obeying traffic signals and signs, and knowing how to navigate different intersection scenarios are all crucial aspects of responsible driving. By following these laws, drivers can contribute to safer roadways and reduce the risk of accidents at intersections. 

Remember that traffic laws may change, so staying informed and up-to-date on any new regulations or changes to existing laws is essential. Safe and courteous driving benefits everyone on the road.