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Some warning signs have flashing lights to alert drivers of conditions ahead or remind drivers to slow down. In Britain, they are called warning lights. Flashing lights can be dangerous for people with certain forms of epilepsy and/or sensory processing disorder. Attached lights
11th edition of the MUTCD, published December 2023. In the United States, road signs are, for the most part, standardized by federal regulations, most notably in the Manual on Uniform Traffic Control Devices (MUTCD) and its companion volume the Standard Highway Signs (SHS).
Sign warning of cattle crossing in a rural road of Madeira Island, Portugal. Traffic signs can be grouped into several types. For example, Annexe 1 of the Vienna Convention on Road Signs and Signals (1968), which on 30 June 2004 had 52 signatory countries, defines eight categories of signs: A. Danger warning signs; B. Priority signs
Increasingly, signs have been used to remind drivers to buckle seat belts ("Click it or ticket"), obey the speed limit, and stay off the road if impaired ("Drive sober or get pulled over"). [7] In a federal study, a slight majority of drivers reported that public safety messages on dynamic message signs impacted their driving behaviors. [8]
Road signs in Jamaica are standardized by the Traffic Control Devices Manual developed by the Ministry of Transport and Mining (formerly the Ministry of Transport and Works). [1] They generally follow both US signs based on the MUTCD , [ 2 ] including diamond-shaped warning signs , and European signs based on the Vienna Convention on Road Signs ...
Regulatory traffic signs within the United States must comply with the federal Manual on Uniform Traffic Control Devices (MUTCD) or the State MUTCD, depending on the state in which the sign is installed. These signs typically have a white background with black or red legends (legends include text, symbols, graphics not part of the background ...
Traffic signs, including warning signs contain many specialized symbols (see article for list) DOT pictograms; ISO 7001; Exit sign, a.k.a. "running man" [1] Gender symbols for public toilets; Map symbol. Japanese map symbols; International Breastfeeding Symbol; International Symbol of Access; Barber's pole
Some countries have a unique traffic warning sign for curves and other areas with an increased danger of rollover for trucks and other vehicles with high centers of gravity. These signs may include an advisory safe speed to avoid rolling over.