Observing and interpreting traffic signs (especially warning, priority or prohibitory traffic signs)

Prohibitory traffic signs are used to prohibit certain types of manoeuvres or some types of traffic.

At the end of the street through which vehicles may not enter, a prohibitory traffic sign "Do Not Enter", "Wrong Way", or "No Entry" sign is posted, e.g. with that text, or a round red sign with a white horizontal bar.

General European prohibition signs do usually not have such a red line.

The prohibition signs in Europe are round with a red border.

Unless a prohibition sign is placed, there are not access restrictions.

Both the mandatory and the prohibition signs provide instructions that cannot be ignored.

It features a black cross with a red prohibition sign over it.

Prohibition signs are round with white backgrounds, red borders, and blue pictograms.

Swedish warning and prohibition signs also have a thicker border than their European counterparts.

Prohibition signs displaying a symbol other than a numeric value have a diagonal red line across them.

Prohibition signs in Slovenia and Sweden are similar in this respect.

If these countries are forced to authorise buses of 15 metres, they will need to install additional prohibition signs throughout the country.

Prohibition signs and mandatory instruction signs, instead, are placed exactly at the beginning of the area of validity.

Order and Prohibition signs were almost all replaced within a couple of years, with the warning and direction signs taking somewhat longer.

The prohibition signs have a red line across them if there is a symbol on them, not if it is a numeric value.

In Sentani Airport, you can find the typical prohibition sign besides no smoking sign, viz.

Whereas European signs usually have white background on warning and prohibition signs, the Swedish signs have a yellow/orange colour.

Official ISO template for prohibition sign (but not a true circle, so not ideal for vector usage)

In order to deny access to pedestrians, bicycles and other slow vehicles, the road owner must place a specific prohibition sign for each category of transport to be banned.

He arranged for six security guards to prevent the public from any contact with the art, the objects, and other people, all under a prohibition sign that said "Do it right".

The Unicode code point for the prohibition sign (also called the no symbol) is , Combining Enclosing Circle Backslash ( ⃠ ).

In TSRGD 1994 the legislation allowed metric units as "supplementary indications" for many (but not all) height-limit warning and prohibition signs.

Also, many companies use the "prohibition sign" when describing the services they offer, e.g. an insect deterrent spray brand symbol showing the "prohibition sign" over a mosquito.

This involves volunteers in hi-vis clothing drawing attention to the CCTV equipped enforcement cars, which are often parked stealthily, and to unclear prohibition signs so motorists do not commit offences.

In contrast, a green circle with no line through it may be used as a Yes symbol, or the "anti prohibition sign", indicating that the activity represented inside the circle is permitted, but this is not official.

According to the ISO standard (and also under a UK Statutory Instrument), the red area must take up at least 35% of the total area of the sign within the outer circumference of the "prohibition sign".

The no symbol (also prohibition sign, no sign, circle-backslash symbol, nay, or universal no) is a circle with a diagonal line through it (running from top left to bottom right), surrounding a pictogram used to indicate something is not permitted.