◎ Sharing the road

People crossing are not obstacles

A crosswalk can be marked with paint or exist unmarked at an intersection. Approach both with a search pattern: near curb, far curb, median, and the space hidden by vehicles. Yield and reduce speed or stop as needed so a person can cross safely.

Drivers have a duty of care, and people walking also have duties. A person should not step into the immediate path of a vehicle that is too close to stop safely. That reciprocal duty never turns a vulnerable person into a target or gives a driver permission to crowd a crossing. The driver controls the heavier, faster machine.

Never pass a vehicle stopped at a crosswalk. Its driver may be yielding to someone you cannot see. The California Driver Handbook right-of-way section and Vehicle Code section 21950 describe both the duty to yield and the duty to use care.

? Check your understanding

A car ahead stops at an unmarked crosswalk. You cannot see why. What should you do?

1. 1 Pass slowly on the left
2. 2 Pass on the right if the shoulder is open
3. 3 Stop behind it and search for a hidden person
4. 4 Honk so the stopped driver moves

Keyboard: press 1 through 4 to answer.

Bicycles need a lane-shaped amount of respect

A bicycle is a vehicle, but its rider is exposed and may need to move sideways around gravel, drain grates, opening doors, or broken pavement. Do not treat a painted bike lane as a wall that guarantees the rider will stay inside it.

When passing a bicyclist, provide at least 3 feet source of clearance. When practical, move into another available same-direction lane. If that clearance is not available, slow and wait until the pass can be made safely. Before turning across a bicycle's path, check the mirror and blind area and yield.

Enter a bicycle lane for a turn only after checking and yielding, and no more than 200 feet source before the turn. This makes your path predictable while limiting how long you occupy the lane.

Motorcycles are smaller, not farther away

A motorcycle's narrow profile makes speed and distance harder to judge. Look twice before turning or changing lanes. Give a rider a full lane. Never try to share the same lane while passing.

Increase space behind a motorcycle on rough or wet surfaces. A rider may change position within the lane to avoid debris, become more visible, or prepare for a curve. That movement is not an invitation to squeeze alongside.

? Check your understanding

A motorcycle moves toward the left side of its lane before rough pavement. What should you infer?

1. 1 The rider is giving you room to share the lane
2. 2 The rider may be choosing visibility or avoiding a surface hazard
3. 3 The rider must be turning left
4. 4 The motorcycle no longer controls the lane

Keyboard: press 1 through 4 to answer.

If you cannot see a truck mirror, assume you are unseen

Large vehicles have broad blind zones beside the cab, behind the trailer, and close to the front. Do not linger in them. If you cannot see the driver's face in a mirror, the driver probably cannot see you directly through that mirror.

Trucks also turn differently. A driver may move left before a right turn so the trailer can clear the corner. Never enter the gap on the truck's right. The trailer's rear wheels follow a tighter path and can sweep across that space.

When passing, do it steadily on the left and return only when the entire front of the truck is visible in your mirror. Do not cut in and remove the truck's stopping cushion. On a downgrade, a heavy vehicle may build speed. Leave it room instead of pacing beside it.

Visibility lab

Map a truck's no-zones

Drag your car around the truck and watch the modeled visibility zone change.

Current area Outside the modeled no-zones Relative position 0 ft right, 58 ft back

A top-down truck diagram with modeled front, rear, driver-side, and passenger-side no-zones.

Start behind the truck, then move across each shaded area.

Forward Left Right Back Reset

Modeled no-zone Truck Your car

This is a simplified visibility model, not a scale guarantee. Mirrors, trailer geometry, lane position, and the driver's view change the exact blind areas. Do not linger beside or closely behind a large truck.

↘ Why the trailer cuts the corner

The tractor changes direction first, but every point farther back follows a shorter inside arc. The rear trailer wheels can track much closer to the curb than the cab. The longer the wheelbase, the larger that off-tracking effect becomes. The open pavement beside a turning cab is part of the truck's path, not a spare lane.

School-bus lights tell a sequence

Yellow flashing lights mean: Slow down and prepare to stop. source Red flashing lights mean: Stop from either direction until the red lights stop flashing, unless the bus is on the other roadway of a divided or multilane highway. source The exception is about road separation, not about how hurried you feel. The state pack states it this way:

Opposite-direction traffic need not stop when the bus is on another roadway of a divided highway or a highway with at least two lanes in each direction. source

If you are unsure whether a median or lane layout creates the exception, choose the cautious response. Look for children near the bus even after its lights stop.

Decision lab

Read the bus, road, and direction

Change all three facts. The exception depends on which roadway your car is using.

Required action Stop Vehicle 25 mph, 120 ft away Rule cue Stop from either direction until the red lights stop flashing, unless the bus is on the other roadway of a divided or multilane highway.

A top-down school bus diagram showing flashing lights, roadway type, and an approaching car.

Red lights on an undivided road. Stop from either direction.

Bus lights

Yellow Red

Your direction

Same direction Opposite direction

Roadway

Undivided Divided Multilane

Lanes each way

2

Run approach Reset

School bus Your vehicle Divider or center line

This model teaches the California handbook rule. Road geometry and active signals must be identified before applying the exception.

Official source: School buses

? Check your understanding

A school bus across a narrow painted center line displays flashing red lights. What is the key question?

1. 1 Whether you are late
2. 2 Whether the bus is on a legally separate other roadway
3. 3 Whether a vehicle ahead continues
4. 4 Whether the bus door is visible

Keyboard: press 1 through 4 to answer.

Make room for emergency response

When an emergency vehicle approaches with a siren and red light, move to the right edge and stop when it is safe. Do not stop in an intersection. Clear it first, then pull right. Stay stopped until the vehicle passes and watch for more responders following it.

When approaching a stationary emergency, tow, or highway vehicle displaying warning lights, move over when safe. If you cannot move over, slow to a reasonable and prudent speed. Give the work area a full lane of protection whenever the road permits.

Source trail

• California Driver Handbook: Sharing the Road
• California Driver Handbook: School Buses and Emergency Vehicles
• California Vehicle Code section 21760
• California Vehicle Code section 22454
• California Vehicle Code section 21806