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Signal Timing
Signal timing is the technique which traffic engineers use to distribute right-of-way at a signalized intersection. The process includes selecting appropriate values for timing, which are implemented in specialized traffic signal controllers. Signal timing involves deciding how much green time the traffic signal provides an intersection by movement or approach (depending on the lane configuration), how long the pedestrian WALK signal should be, whether trains or buses should be prioritized, and numerous other factors. Basic signal timing operation In signal timing fundamentals, there are different modes of operation that the signal controller can go through, which controls the signal. Traffic signals may go into two broad groups by their method of operation. They can either be pre-timed or actuated. Pre-timed signals provide each intersection approach a fixed amount of time on a predetermined basis, serving each approach consecutively, and repeating the pattern. In normal opera ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] [Amazon] |
Traffic Engineering (transportation)
Traffic engineering is a branch of civil engineering that uses engineering techniques to achieve the safe and efficient movement of people and goods on roadways. It focuses mainly on research for safe and efficient traffic flow, such as road geometry, sidewalks and crosswalks, cycling infrastructure, traffic signs, road surface markings and traffic lights. Traffic engineering deals with the functional part of transportation system, except the infrastructures provided. Traffic engineering is closely associated with other disciplines: *Transport engineering *Pavement engineering *Bicycle transportation engineering *Highway engineering *Transportation planning *Urban planning *Human factors, Human factors engineering Typical traffic engineering projects involve designing traffic control device installations and modifications, including traffic signals, signs, and pavement markings. However, traffic engineers also consider traffic safety by investigating locations with high crash ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] [Amazon] |
Texas Transportation Institute
The Texas A&M Transportation Institute (TTI) in Bryan/College Station, Texas is a transportation research agency in the United States. The institute was created in 1950, primarily in response to the needs of the Texas Highway Department (now the Texas Department of Transportation). TTI is a state agency and a member of the Texas A&M University System. Over 100 TTI researchers publish papers and give presentations at the Transportation Research Board (TRB) annual meeting, with around 50 serving on TRB committees. Since the inception of the National Cooperative Highway Research Program (NCHRP) in 1962, TTI has led over 70 NCHRP projects, more than any other participant in the program. The institute maintains a close association with the Texas A&M University Texas A&M University (Texas A&M, A&M, TA&M, or TAMU) is a public university, public, Land-grant university, land-grant, research university in College Station, Texas, United States. It was founded in 1876 and became ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] [Amazon] |
IEEE Spectrum
''IEEE Spectrum'' is a magazine edited and published by the Institute of Electrical and Electronics Engineers. The first issue of ''IEEE Spectrum'' was published in January 1964 as a successor to ''Electrical Engineering''. In 2010, ''IEEE Spectrum'' was the recipient of '' Utne Reader'' magazine's Utne Independent Press Award for Science/Technology Coverage. In 2012, ''IEEE Spectrum'' was selected as the winner of the National Magazine Awards "General Excellence Among Thought Leader Magazines" category. References External links * Monthly magazines published in the United States Science and technology magazines published in the United States Engineering magazines Spectrum A spectrum (: spectra or spectrums) is a set of related ideas, objects, or properties whose features overlap such that they blend to form a continuum. The word ''spectrum'' was first used scientifically in optics to describe the rainbow of co ... Magazines established in 1964 Magazines pub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] [Amazon] |
First Amendment To The United States Constitution
The First Amendment (Amendment I) to the United States Constitution prevents Federal government of the United States, Congress from making laws respecting an Establishment Clause, establishment of religion; prohibiting the Free Exercise Clause, free exercise of religion; or abridging the Freedom of speech in the United States, freedom of speech, the Freedom of the press in the United States, freedom of the press, the freedom of assembly, or the Right to petition in the United States, right to petition the government for redress of grievances. It was adopted on December 15, 1791, as one of the ten amendments that constitute the United States Bill of Rights, Bill of Rights. In the original draft of the Bill of Rights, what is now the First Amendment occupied third place. The first two articles were not ratified by the states, so the article on disestablishment and free speech ended up being first. The Bill of Rights was proposed to assuage Anti-Federalism, Anti-Federalist oppo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] [Amazon] |
United States District Court For The District Of Oregon
The United States District Court for the District of Oregon (in case citations, D. Ore. or D. Or.) is the federal district court whose jurisdiction comprises the state of Oregon. It was created in 1859 when the state was admitted to the Union. Appellate jurisdiction belongs to the United States Court of Appeals for the Ninth Circuit (except for patent claims and claims against the U.S. government under the Tucker Act, which are appealed to the Federal Circuit). Matthew P. Deady served as its first judge. The United States Attorney's Office for the District of Oregon represents the United States in civil and criminal litigation in the court. , the United States attorney is William Narus. Organization The court has four divisional offices within the state (three with staff): Portland, Eugene, Medford, and Pendleton. The Portland Division holds court at the Mark O. Hatfield United States Courthouse and handles cases from Clackamas, Clatsop, Columbia, Hood River, J ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] [Amazon] |
Electrical Engineering
Electrical engineering is an engineering discipline concerned with the study, design, and application of equipment, devices, and systems that use electricity, electronics, and electromagnetism. It emerged as an identifiable occupation in the latter half of the 19th century after the commercialization of the electric telegraph, the telephone, and electrical power generation, distribution, and use. Electrical engineering is divided into a wide range of different fields, including computer engineering, systems engineering, power engineering, telecommunications, radio-frequency engineering, signal processing, instrumentation, photovoltaic cells, electronics, and optics and photonics. Many of these disciplines overlap with other engineering branches, spanning a huge number of specializations including hardware engineering, power electronics, Electromagnetism, electromagnetics and waves, microwave engineering, nanotechnology, electrochemistry, renewable energies, mechatronics/control ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] [Amazon] |
Regulation And Licensure In Engineering
Regulation and licensure in engineering is established by various jurisdictions of the world to encourage life, public welfare, safety, well-being, then environment and other interests of the general public and to define the licensure process through which an engineer becomes licensed to practice engineering and to provide professional services and products to the public. As with many other professions and activities, engineering is often a restricted activity. Relatedly, jurisdictions that license according to particular engineering discipline define the boundaries of each discipline carefully so that practitioners understand what they are competent to do. A licensed engineer takes legal responsibility for engineering work, product or projects (typically via a seal or stamp on the relevant design documentation) as far as the local engineering legislation is concerned. Regulations require that only a licensed engineer can sign, seal or stamp technical documentation such as report ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] [Amazon] |
Red Light Camera
A red light camera (short for red light running camera ) is a type of traffic enforcement camera that photographs a vehicle that has entered an intersection after the traffic signal controlling the intersection has turned red. By automatically photographing vehicles that run red lights, the photo is evidence that assists authorities in their enforcement of traffic laws. Generally the camera is triggered when a vehicle enters the intersection (passes the stop-bar) after the traffic signal has turned red. Typically, a law enforcement official will review the photographic evidence and determine whether a violation occurred. A citation is then usually mailed to the owner of the vehicle found to be in violation of the law. These cameras are used worldwide, in China, in European countries, and in countries including: Australia, New Zealand, Canada, Indonesia, the United Kingdom, Singapore and the United States. More than 75 countries worldwide use red light cameras. If a proper identifi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] [Amazon] |
Mats Järlström
A mat is a hard or soft floor covering that generally is placed on a floor or other flat surface. Mats serve a range of purposes including: * serving to clean items passed over it, such as a doormat, which removes dirt from the soles of shoes * protecting that which is above the mat, such as a wrestling or gymnastics mat, or an anti-vibration mat * protecting that which is beneath the mat, such as a place mat or the matting used in archival framing and preservation of documents and paintings * providing a regular or flat surface, such as a cushioned computer mousepad Types In domestic settings * In homes or rooms where people sit predominantly on the floor (common in Japan, Korea, India, and formerly China), mats may cover entire rooms, or be used in certain areas for sitting or sleeping. The traditional Japanese style of mat is known as the tatami. Shoes are typically removed before entering these areas to keep out dirt and debris. * A doormat or door-mat is a flat, us ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] [Amazon] |
Beaverton, Oregon
Beaverton is a city in the Tualatin Valley, located in Washington County in the U.S. state of Oregon, with a small portion bordering Portland. The city is among the main cities that make up the Portland metropolitan area. Its population was 97,494 at the 2020 census, making it the second most populous city in the county and the seventh-most populous city in Oregon. Beaverton is an economic center for Washington County along with neighboring Hillsboro. History Early settlement According to '' Oregon Geographic Names'', Beaverton's name is derived from the settlement's proximity to a large body of water resulting from beaver dams. The area of Tualatin Valley that became Beaverton was originally the home of a Native American tribe known as the '' Atfalati'', which settlers mispronounced as ''Tualatin''. The Atfalati population dwindled in the latter part of the 18th century, and the prosperous tribe was no longer dominant in the area by the 19th century when settlers arri ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] [Amazon] |
University Of Maryland, College Park
The University of Maryland, College Park (University of Maryland, UMD, or simply Maryland) is a public university, public Land-grant university, land-grant research university in College Park, Maryland, United States. Founded in 1856, UMD is the Flagship university, flagship institution of the University System of Maryland. It is known as the biggest university in the state of Maryland. UMD is the largest university in Maryland and the Washington metropolitan area. Its eleven schools and colleges offer over 200 degree-granting programs, including 113 undergraduate majors, 107 Master's degree, master's programs, and 83 Doctorate, doctoral programs. UMD's athletic teams are known as the Maryland Terrapins and compete in NCAA Division I as a member of the Big Ten Conference. A member of the Association of American Universities, The University of Maryland's proximity to Washington, D.C. has resulted in many research partnerships with the Federal government of the United States, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] [Amazon] |
Institute Of Transportation Engineers
The Institute of Transportation Engineers (ITE) is an international educational and scientific association of transportation professionals who are responsible for meeting mobility and safety needs. ITE facilitates the application of technology and scientific principles to research, planning, functional design, implementation, operation, policy development, and management for any mode of ground transportation. History The organization was formed in October 1930 amid growing public demand for experts to alleviate traffic congestion and the frequency of crashes that came from the rapid development of automotive transportation. Various national and regional conferences called for discussions of traffic problems. These discussions led to a group of transportation engineers starting the creation of the first professional traffic society. A meeting took place in Pittsburgh on October 2, 1930, where a tentative draft of the organization's constitution and by-laws came to fruition. The cons ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] [Amazon] |
