Traffic sign A7c: Road narrows on the right

The A7c sign warns that the road ahead narrows on the right. That is the usual case for works along the kerb: a skip, scaffolding or a works zone that takes up part of the right-hand lane.

Warning signs are triangular with a red border. They warn of a hazard ahead and are normally placed about 150 metres before it (Highway Code, art. 66.2). On a worksite they announce what the driver is about to meet: roadworks, a narrowing, an uneven surface.

Anyone who puts up a traffic sign on the public road for works needs the consent of the road authority: through the occupation permit or through a signage permit with a signage plan. Without that consent you may not put up the sign.