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Traffic-light
Traffic lights, traffic signals, or stoplights – also known as robots in South Africa, Zambia, and Namibia – are signaling devices positioned at road intersections, pedestrian crossings, and other locations in order to control the flow of traffic. Traffic lights usually consist of three signals, transmitting meaningful information to road users through colours and symbols, including arrows and bicycles. The usual traffic light colours are red to stop traffic, amber for traffic change, and green to allow traffic to proceed. These are arranged vertically or horizontally in that order. Although this is internationally standardised, variations in traffic light sequences and laws exist on national and local scales. Traffic lights were first introduced in December 1868 on Parliament Square in London to reduce the need for police officers to control traffic. Since then, electricity and computerised control have advanced traffic light technology and increased intersection capaci ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Traffic Signals
Traffic lights, traffic signals, or stoplights – also known as robots in South Africa, Zambia, and Namibia – are signaling devices positioned at intersection (road), road intersections, pedestrian crossings, and other locations in order to control the flow of traffic. Traffic lights usually consist of three signals, transmitting meaningful information to road users through colours and symbols, including arrows and bicycles. The usual traffic light colours are red to stop traffic, Amber (color), amber for traffic change, and green to allow traffic to proceed. These are arranged vertically or horizontally in that order. Although this is internationally standardised, variations in traffic light sequences and laws exist on national and local scales. Traffic lights were first introduced in December 1868 on Parliament Square in London to reduce the need for police officers to control traffic. Since then, electricity and computerised control have advanced traffic light technolog ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pedestrian Crossing
A pedestrian crossing (or crosswalk in American and Canadian English) is a place designated for pedestrians to cross a road, street or Avenue (landscape), avenue. The term "pedestrian crossing" is also used in the Vienna Convention on Road Signs and Signals, Vienna and Geneva Convention on Road Traffic, Geneva Conventions, both of which pertain to road signs and road traffic. Marked pedestrian crossings are often found at Junction (road), intersections, but may also be at other points on busy roads that would otherwise be too unsafe to cross without assistance due to vehicle numbers, speed or road widths. They are also commonly installed where large numbers of pedestrians are attempting to cross (such as in shopping areas) or where vulnerable road users (such as school children) regularly cross. Rules govern usage of the pedestrian crossings to ensure safety; for example, in some areas, the pedestrian must be more than halfway across the crosswalk before the driver proceeds, and ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lester Wire
Lester Farnsworth Wire (September 3, 1887 – April 14, 1958) was an American police officer and inventor. He is credited with the invention of the electric traffic light in 1912. A native of Salt Lake City, Utah, Wire worked as a traffic officer and later as a detective for the Salt Lake City Police Department (SLCPD). His first traffic light, a manually operated wooden model, was built while he was head of the SLCPD's Traffic Bureau and installed in downtown Salt Lake City in 1912. Though Wire's traffic light was originally viewed with curiosity and disapproval, the public gradually accepted it over time, and by the 1920s Salt Lake City had developed an automated traffic light system inspired by Wire's invention. Wire continued to work on traffic light designs throughout his life, and later fully redesigned his traffic light using a metal frame. Wire never patented his traffic lights, and by the 1960s both of the original models had been lost. However, his work played a signifi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Variations In Traffic Light Operation
In traffic engineering, there are regional and national variations in traffic light operation. This may be in the standard traffic light sequence (such as the inclusion of a red–amber phase) or by the use of special signals (such as flashing amber or public transport signals). Flashing signals Flashing red In the United States and Canada, a flashing red light is the equivalent of a stop sign. In New Zealand, Hong Kong, and the United Kingdom, paired red/red traffic lights are often installed outside fire and ambulance stations on major roads, which, when activated by the station, flash alternately (so that at any time one red light is showing), the purpose being to cause traffic to stop for a set amount of time to allow emergency vehicles to exit their station safely. The UK also uses an amber light which precedes the flashing red lights, and these signals are also used at level crossings, airfields and lifting bridges. Flashing amber/yellow In the US, Canada, Braz ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Garrett Morgan
Garrett Augustus Morgan Sr. (March 4, 1877 – July 27, 1963) was an American inventor, businessman, and community leader. His most notable inventions were a type of three-way traffic light in 1923, and a protective 'smoke hood' notably used in a 1916 tunnel construction disaster rescue. Morgan also discovered and developed a chemical hair-processing and straightening solution. He created a successful company called "G. A. Morgan Hair Refining Company" based on his hair product inventions and a complete line of hair care products. He was involved in African Americans' civic and political advancement, especially in and around Cleveland, Cleveland, Ohio. Early life and education Morgan was born in 1877 in Paris, Kentucky, an almost exclusively African American community. His father was Sydney Morgan, a son and freed slave of Confederate States Army, Confederate General John Hunt Morgan, John H. Morgan of Morgan's Raiders. His mother, also a freed slave, was Elizabeth Reed, daughter ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
William Potts (inventor)
William Potts (May 1883 – 1947) was a Detroit police officer who is credited with inventing the modern, three-lens traffic light in Detroit in 1920. (A gas-powered, two-lens, red/green traffic signal was invented in London in 1868 by John Peake Knight, though after a short test installation, traffic lights were not seen again in the U.K. until 1929.) Biography William Potts was born in Bad Axe, Michigan. The 1900 census lists Potts as 17 years old and a police officer. By 1910, he was married to Grace (Baker) Potts, and they subsequently had 4 children. Potts became the "superintendent, signal person police" for the city of Detroit. The old system of police directing traffic had become increasingly outmoded; two-color signals, with green and red lights, already existed, but they did not leave drivers sufficient time to stop at high speeds. Some municipalities experimented with leaving the green on for a few seconds after the red was illuminated, to caution the driver that the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Utah
Utah is a landlocked state in the Mountain states, Mountain West subregion of the Western United States. It is one of the Four Corners states, sharing a border with Arizona, Colorado, and New Mexico. It also borders Wyoming to the northeast, Idaho to the north, and Nevada to the west. In comparison to all the U.S. states and territories, Utah, with a population of just over three million, is the List of U.S. states and territories by area, 13th largest by area, the List of U.S. states and territories by population, 30th most populous, and the List of U.S. states by population density, 11th least densely populated. Urban development is mostly concentrated in two regions: the Wasatch Front in the north-central part of the state, which includes the state capital, Salt Lake City, and is home to roughly two-thirds of the population; and Washington County, Utah, Washington County in the southwest, which has approximately 180,000 residents. Most of the western half of Utah lies in ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Euclid Avenue (Cleveland, Ohio)
Euclid Avenue is a major street in Cleveland, Ohio, United States. It runs northeasterly from Public Square in Downtown Cleveland, passing Playhouse Square and Cleveland State University, to University Circle, the Cleveland Clinic, Severance Hall, Case Western Reserve University's Maltz Performing Arts Center (formerly the Temple Tifereth Israel), Case Western Reserve University and University Hospitals Case Medical Center. The street runs through the suburbs of East Cleveland, Euclid, and Wickliffe, to Willoughby as a part of U.S. Route 20 and U.S. Route 6. The HealthLine bus rapid transit line runs in designated bus lanes in the median of Euclid Avenue from Public Square to Louis Stokes Station at Windermere in East Cleveland. It received nationwide attention from the 1860s to the 1920s for its beauty and wealth, including a string of mansions that came to be known as Millionaires' Row. There are several theaters, banks, and churches along Euclid, as well as Cleveland's ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cleveland
Cleveland is a city in the U.S. state of Ohio and the county seat of Cuyahoga County. Located along the southern shore of Lake Erie, it is situated across the Canada–U.S. maritime border and approximately west of the Ohio-Pennsylvania state border. Cleveland is the most populous city on Lake Erie, the second-most populous city in Ohio, and the 53rd-most populous city in the U.S. with a population of 372,624 in 2020. The city anchors the Cleveland metropolitan area, the 33rd-largest in the U.S. at 2.18 million residents, as well as the larger Cleveland– Akron– Canton combined statistical area with 3.63 million residents. Cleveland was founded in 1796 near the mouth of the Cuyahoga River as part of the Connecticut Western Reserve in modern-day Northeast Ohio by General Moses Cleaveland, after whom the city was named. The city's location on the river and the lake shore allowed it to grow into a major commercial and industrial metropolis by the late 19th century, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Modern British LED Traffic Light
Modern may refer to: History *Modern history ** Early Modern period ** Late Modern period *** 18th century *** 19th century *** 20th century ** Contemporary history * Moderns, a faction of Freemasonry that existed in the 18th century Philosophy and sociology * Modernity, a loosely defined concept delineating a number of societal, economic and ideological features that contrast with "pre-modern" times or societies ** Late modernity Art * Modernism ** Modernist poetry * Modern art, a form of art * Modern dance, a dance form developed in the early 20th century * Modern architecture, a broad movement and period in architectural history ** Moderne, multiple architectural styles ** Modernisme a.k.a. Catalan Modernism * Modern music (other) Geography * Modra, a Slovak city, referred to in the German language as "Modern" Typography * Modern (typeface), a raster font packaged with Windows XP * Another name for the typeface classification known as Didone (typography) * Mode ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Detroit, Michigan
Detroit ( , ) is the List of municipalities in Michigan, most populous city in the U.S. state of Michigan. It is situated on the bank of the Detroit River across from Windsor, Ontario. It had a population of 639,111 at the 2020 United States census, 2020 census, making it the List of United States cities by population, 26th-most populous city in the United States and the largest U.S. city on the Canada–United States border. The Metro Detroit area, home to 4.3 million people, is the second-largest in the Midwestern United States, Midwest after the Chicago metropolitan area and the 14th-largest in the United States. The county seat, seat of Wayne County, Michigan, Wayne County, Detroit is a significant cultural center known for its contributions to music, art, architecture and design, in addition to its historical automotive and industrial background. In 1701, Kingdom of France, Royal French explorers Antoine de la Mothe Cadillac and Alphonse de Tonty founded Fort Pontc ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
