Cross a border by car and the road does not change. The paint on it does.
Line marking is governed by national road codes, and those codes diverged early and never reconverged. Nobody harmonised them, because there was never a reason to.
That makes the paint one of the cheapest reads in the game. It is underfoot in most frames, it does not hide behind vegetation, and it is legible at distance and at speed.
The colour of a stripe is a legal fact about which country you are standing in.
The centre line
Start here. It is the highest-information mark on the road.
- Yellow centre lines
- The North American standard, and also used in a scattering of countries elsewhere including parts of the Nordics and Latin America. If a yellow line is separating opposing traffic, you have made a large cut.
- White centre lines
- The European, UK, Commonwealth and broad-Asian standard. This is the more common case globally, so it narrows less — but combined with driving side it is still useful.
Some countries use yellow specifically to mean no overtaking while using white everywhere else. Before you treat a yellow line as a national tell, look up and down the stretch and decide whether the yellow is contextual or universal.
| Centre line | Driving side | Where that points |
|---|---|---|
| Yellow | Right-hand traffic | North America first, then parts of Latin America and the Nordics |
| White | Left-hand traffic | UK and Ireland, Commonwealth Africa, South and Southeast Asia, Australasia |
| White | Right-hand traffic | Continental Europe and much of Asia — the broadest case, so keep narrowing |
| Yellow | Left-hand traffic | Uncommon. Check for contextual no-overtaking yellow before you commit |
The edge line
The outer line at the shoulder is underrated, largely because players stop looking once they have read the centre.
- Most countries use white edge lines, so white tells you little on its own.
- A small number use yellow edge lines as standard, which makes them a near-instant identification when you see them.
- Some countries use no edge line at all on minor roads.
- Some mark a solid line on one side only, which is a discriminator in itself.
Check both edges before you move on. Asymmetry between the two sides is a clue, not a paint job that went wrong.
Dash geometry
Once colour has done its work, the shape of the paint separates the countries that share a colour. Four variables carry most of the signal.
- Length and gap ratio
- Long dashes with short gaps versus short dashes with long gaps varies meaningfully between countries, and the ratio is consistent within one.
- Line width
- Some countries paint noticeably thick lines. Judge the width against the lane, not against your memory of home.
- Double lines
- Whether a no-overtaking zone is marked with a double solid, a solid plus a dashed, or a single thick line differs by road code.
- Kerb painting
- Painted kerbstones — black and white, yellow and white, red and white — are a strong regional marker in Eastern Europe, the Middle East, South Asia and Latin America.
Crossings and stop lines
Pedestrian crossings vary more than you would expect: plain parallel bars, zebra stripes of different widths, ladder patterns, or bordered blocks. Stop lines may be solid, dashed, or accompanied by painted text or triangles.
Give-way markings in particular — painted triangles pointing back at the driver — are common in some countries and entirely absent in others. Their presence is a filter before you have read a single letter of any sign.
When the paint is gone
On unmarked rural roads this whole method gives you nothing. That is fine. Fall back to bollards and poles, and treat the absence of markings as weak evidence about road maintenance budgets and rurality rather than as a country tell.