One-way traffic

Residents may dislike one-way streets due to the circuitous route required to get to a specific destination, and the potential for higher speeds adversely affecting pedestrian safety.

Some studies even challenge the original motivation for one-way streets, in that the circuitous routes negate the claimed higher speeds.

A number of European countries, including Russia and post-Soviet states, use one-way rectangular road signs with a white arrow on a blue background.

[4] This sign shows a big white arrow crossed out by a red diagonal line on a blue background.

The abstract "No Entry" sign was officially adopted for standardization at the League of Nations convention in Geneva in 1931.

The sign was adapted from Swiss usage, derived from the practice of former European states that marked their boundaries with their formal shield symbols.

[19] Other sources claim the fad arose in relation to the disaster of the SS Morro Castle.

On 9 September 1934, the on-fire SS Morro Castle was towed to the New Jersey shoreline near the Asbury Park Convention Center and the sightseeing traffic was enormous.

One-way street sign in New York City
No trucks over 5 tons , nonstandard lettering Cullom Ave, One way signs in Chicago , Illinois
Another style of one-way sign, located in Chicago
Road signs "Give way" and "Exit to a one-way road" at the exit to Gubarevicha Street in Elista , Russia.
Opened One-way street for cyclists as part of cycling infrastructure (Germany)
A one-way trail sign in a California nature preserve applies to all trail users, including equestrians, hikers, and mountain bikers. The restriction was originally implemented as a social distancing measure during the COVID-19 pandemic but persisted for crowd control.