Yellow and white lines

One rule sorts every line on the road: yellow separates opposing traffic, white separates traffic going the same way. If there is a yellow line to your left, someone is coming towards you on the other side of it.

Yellow:

• Broken — passing is allowed when safe.
• Broken beside solid — you may pass only when it is safe and the broken line is on your side.
• Double solid — no passing.
• Single yellow line — passing is allowed, with extra caution.
• Double broken — a reversible lane; the lane control signal overhead says whether you may use it.
• Two-way left-turn lane — drivers from both directions share this lane to turn left. The markings can appear reversed, with the solid lines inside the broken ones.

White:

• Solid — do not change lanes.
• Broken — lane changing is allowed when safe.
• Stop line — stop before it, not on it.
• Crosswalk markings — stop for pedestrians in the crosswalk.

One rule people forget: it is illegal to drive over freshly painted, wet pavement markings.