California freeways carry high volumes at high speeds. A few habits reduce collision risk and keep traffic flowing. Freeway driving rewards smoothness and anticipation.
Keep right except to pass
Use left lanes for passing. Lingering in the left lane creates congestion and encourages unsafe passing on the right, which is both dangerous and illegal in many situations.
Merge smoothly
Match freeway speed before merging and adjust to gaps rather than forcing them. Signal early and accelerate on the on-ramp so you enter traffic at a compatible speed.
Manage space and speed
Maintain a following cushion and adjust speed for conditions. Pair these with defensive driving. If your vehicle breaks down, see what to do on a freeway.



