Road Safety

Traffic Schemes

White carriageway markings

Carriageway markings are a cheap and cost effective way of reducing accidents. At junctions they provide an indication of priorities, and as centre or lane lines, they indicate the best line for vehicles to follow. White markings are generally advisory.

Lane arrows are used on the approaches to traffic signalled junctions to indicate which lane should be used for turning and straight ahead movements. Lane arrows are generally not permitted on the approaches to roundabouts. SLOW markings are often used on the approach to a hazard.

Areas of central cross hatching, commonly called 'ghost island' markings, are useful as a means of reducing accidents by separating on-coming traffic, reducing traffic speed and providing safe right turning areas.

These, along with central traffic islands, have been shown to play a major part in reducing motor cycle accidents.