Wiktionary
n. A sign for the control of traffic or the information of drivers.
Wikipedia
Traffic signs or road signs are signs erected at the side of or above roads to give instructions or provide information to road users. The earliest signs were simple wooden or stone milestones. Later, signs with directional arms were introduced, for example, the fingerposts in the United Kingdom and their wooden counterparts in Saxony.
With traffic volumes increasing since the 1930s, many countries have adopted pictorial signs or otherwise simplified and standardized their signs to overcome language barriers, and enhance traffic safety. Such pictorial signs use symbols (often silhouettes) in place of words and are usually based on international protocols. Such signs were first developed in Europe, and have been adopted by most countries to varying degrees.
Usage examples of "traffic sign".
It floats just buoyant on the wind, kisses a traffic sign, lightly dabs a slide trombone and plasters itself across army boots.
He remembered how he, himself, some twelve years ago, on his first day on the street, neatly uniformed and complete with the police brooch on the left side of his tunic, had raised his hand to stop a lady cyclist who was ignoring a one-way traffic sign.
A nearby road traffic sign indicated the likelihood of the unsighted passing across.
He left the building and entered a courtyard where another gaslamp revealed a One Way Only traffic sign that stood in front of three tunnels.
His reflexes were dulled by the gin, but by chance his attention was still on the traffic sign.
Renie would have preferred to have appeared in the bare minimum-a faceless, sexless object like a pedestrian on a traffic sign-but a rudimentary sim bespoke poverty, and nothing would attract attention faster at the Inner District Gateway.
He crossed three-lane Galasio Boulevard against the light, turned a corner at such speed that he briefly lost control, and sheared off a traffic sign.
At the far end of the cabin the sign on the door is not inviting: a European-style traffic sign showing a man peeing in silhouette.
You can read subtexts even in a traffic sign that says 'No littering.
That double arrow is a two-way traffic sign, indicating that the numbers flow in both directions.