"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."
Types of traffic control devices, including signs, signals, and markings, and their proper use and installation.
Traffic signs: The design, placement, and meaning of various types of traffic signs used to provide information or regulatory guidance to motorists and pedestrians.
Traffic signals: The function, maintenance, installation, and timing of traffic signals used to regulate the flow of traffic at intersections and other locations.
Pavement marking: The design, materials, and placement of pavement markings, such as lines, arrows, and symbols, used to guide drivers on the road.
Traffic calming measures: The design and implementation of traffic calming measures, such as speed humps, chicanes, and roundabouts, to reduce vehicle speeds and improve safety.
Roadway geometric design: The design of highways, streets, and intersections to optimize traffic flow and safety.
Access management: The planning and implementation of strategies to manage access to roadways and reduce congestion and accidents.
Work zone traffic control: The design and implementation of traffic control measures in construction zones, including temporary signs, barricades, and traffic signals.
Intelligent Transportation Systems (ITS): The use of technology to improve traffic flow and safety, including traffic cameras, electronic message signs, and traffic management software.
Parking management: The planning and implementation of parking regulations, including signage, enforcement, and pricing strategies.
Pedestrian and bicycle facilities: The design and implementation of facilities, such as sidewalks, bike lanes, and crosswalks, to improve safety and access for pedestrians and bicyclists.
Environmental considerations: The impact of traffic on environmental factors, such as air quality, noise pollution, and wildlife habitats.
Emergency management: The procedures and devices used to manage traffic during emergency situations, such as accidents, natural disasters, and public events.
Traffic Signals: These are electrically operated devices that control the flow of traffic at intersections by assigning the right of way to different traffic streams.
Signs: These are regulatory, warning, or informational devices that convey messages to drivers to regulate traffic or emergencies.
Pavement Markings: This includes painted lines, arrows, or symbols on a roadway surface to indicate the directions, movements, or boundaries of traffic lanes, pedestrian walkways, or parking areas.
Signal Control Devices: These include devices that convey information to drivers or pedestrians, such as traffic lights, warning lights, or pedestrian signals.
Barrier Systems: These include concrete or steel barriers that physically separate traffic streams or provide protection from hazardous conditions.
Intelligent Transportation Systems (ITS): These include electronic devices that monitor traffic, communicate traffic information to drivers, and suggest alternate routes or modes of transportation.
Speed Control Devices: These include devices, like speed limit signs or speed humps, that regulate the speeds at which vehicles travel.
Work Zone Control Devices: These include devices, like cones, barrels, or signs, that warn drivers of construction, maintenance, or other work activities on or near the roadway.
"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."
"Later, signs with directional arms were introduced, for example the fingerposts in the United Kingdom and their wooden counterparts in Saxony."
"The earliest signs were simple wooden or stone milestones."
"Many countries have adopted pictorial signs or otherwise simplified and standardized their signs to overcome language barriers."
"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..."
"Such signs were first developed in Europe..."
"...many countries have... simplified and standardized their signs... to enhance traffic safety."
"...pictorial signs use symbols (often silhouettes) in place of words..."
"...the fingerposts in the United Kingdom and their wooden counterparts in Saxony."
"The earliest signs were simple wooden or stone milestones."
"...simplified and standardized their signs... to enhance traffic safety."
"...their wooden counterparts in Saxony."
"...overcome language barriers, and enhance traffic safety."
"...the fingerposts in the United Kingdom and their wooden counterparts in Saxony."
"...simplified and standardized their signs to overcome language barriers..."
"Such pictorial signs use symbols (often silhouettes) in place of words and are usually based on international protocols."
"With traffic volumes increasing since the 1930s..."
"Such signs were first developed in Europe, and have been adopted by most countries to varying degrees."