Solid, broken and combination lines

The role of road markings

Road markings define lanes and road edges, direct movements, identify stopping positions and keep dangerous areas clear. They remain instructions even though they are painted on the surface rather than mounted on a post. Regulatory markings must be obeyed.

A centre marking often separates opposing streams of traffic, whereas lane markings divide traffic travelling in the same direction. Look at the whole road layout and the signs; do not assume that every white broken line separates opposing vehicles. The left edge marking identifies the roadway edge and shoulder, not an extra overtaking lane.

Key idea: First identify what the marking separates.

Solid and broken barrier combinations

A solid barrier marking restricts crossing. Do not cross it for an ordinary overtake. Where a solid line and a broken line are paired, the line nearest your vehicle determines the crossing restriction for your side.

If the solid line is nearest, remain on your side for ordinary overtaking. If the broken line is nearest, the marking may permit crossing, but only when the move is otherwise lawful and safe. Check signs, opposing traffic, sight distance and the place available for returning.

The illustrated combination separates opposing directions. The view ahead, not just the paint, determines whether you can safely use a permitted opportunity.

Key idea: In a combination, read the line nearest your vehicle.

Applying a marking restriction

Do not begin a manoeuvre because the leading car did so. Your view, acceleration and available space may differ. A curve, hill crest, stopped bus or approaching vehicle can make an overtake unsafe even beside a broken line.

Where a solid marking, no-overtaking sign or other rule prohibits the movement, wait for a lawful place. A signal or flashing headlights cannot cancel the restriction. Keep safely left and leave a suitable following gap while waiting.

Some exceptional movements have specific legal conditions; the ordinary overtaking lesson is not permission to invent an exception around an obstruction. Obtain safe direction when a blocked road cannot be negotiated lawfully.

Key idea: A permitted marking is only one of the checks needed before crossing.

Quick recap

• Read the actual road layout.
• The nearest combination line applies to your side.
• Broken does not mean safe.
• Signals do not override markings.