Source-backed category
- Examples pending
- 5 reviewed starter clues
- Sources: Geomastr, Bellingcat, Plonk Trainer
- Last reviewed May 7, 2026
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Center lines, edge lines, lane colors, passing restrictions, bus lanes, and parking markings.
Verified facts and community meta are labeled separately so learners can judge how stable each clue is.
Yellow lines separate opposite-direction traffic and white lines separate same-direction traffic.
New Zealand lane guidance commonly uses white lines, double white lines, or raised studs.
South African/SADC road-marking manuals use yellow left edge lines and white right edge lines for carriageway edges.
Double yellow edge-side lines mean no waiting at any time unless signs say otherwise.
Yellow center lines separate opposing traffic; white edge/right-lane markings are common on US roads.