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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 To understand basic signal timing fundamentals, one must also understand the different modes of operation of the signal controller which controls the signal. Traffic signals may be placed into two broad groups by their method of operation. They can be either 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 pa ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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 engineering Typical traffic engineering projects involve designing traffic control device installations and modifications, including traffic signals, signs, and pavement markings. Examples of Engineering Plans include pole engineering analysis and Storm Water Prevention Programs (SWPP). ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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 Dwight Look College of Engineering, the College of Architecture, and the George Bush School of Government and Public Service, as well as other academic units within the Texas A&M University System and at other collaborat ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
IEEE Spectrum
''IEEE Spectrum'' is a magazine edited 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''. The magazine contains peer-reviewed articles about technology and science trends affecting business and society. 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 * {{Official website, https://spectrum.ieee.org/ Monthly magazines published in the United States Science and technology magazines published in the United States Engineering magazines Spectrum A spectrum (plural ''spectra'' or ''spectrums'') is a condition that is not limited to a specific set of values but can vary, without gaps, across a c ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
First Amendment To The United States Constitution
The First Amendment (Amendment I) to the United States Constitution prevents the government from making laws that regulate an establishment of religion, or that prohibit the free exercise of religion, or abridge the freedom of speech, the freedom of the press, the freedom of assembly, or the 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 Bill of Rights. The Bill of Rights was proposed to assuage Anti-Federalist opposition to Constitutional ratification. Initially, the First Amendment applied only to laws enacted by the Congress, and many of its provisions were interpreted more narrowly than they are today. Beginning with '' Gitlow v. New York'' (1925), the Supreme Court applied the First Amendment to states—a process known as incorporation—through the Due Process Clause of the Fourteenth Amendment. In ''Everson v. Board of Education'' (1947), the Court drew on Thom ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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. Marco A. Hernandez is the current chief 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 Natalie K. Wight. 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 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Electrical Engineering
Electrical engineering is an engineering discipline concerned with the study, design, and application of equipment, devices, and systems which use electricity, electronics, and electromagnetism. It emerged as an identifiable occupation in the latter half of the 19th century after commercialization of the electric telegraph, the telephone, and electrical power generation, distribution, and use. Electrical engineering is now 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, electromagnetics and waves, microwave engineering, nanotechnology, electrochemistry, renewable energies, mechatronics/control, and ele ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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 engineering professional services and engineered product to the public. As with many other professions and activities, engineering is 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 documentati ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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] |
Beaverton, Oregon
Beaverton is a city in Washington County, in the U.S. state of Oregon with a small portion bordering Portland in the Tualatin Valley. 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-largest city in the county and the seventh-largest city in Oregon. Beaverton is an economic center for Washington County along with neighboring Hillsboro. It is home to the world headquarters of Nike, Inc., although it sits outside of city limits on unincorporated county land. The hunter–gatherer Atfalati tribe of the Kalapuya people inhabited the Tualatin Valley prior to the arrival of European–American settlers in the 19th century. They occupied a village near the Beaverton and Fanno creeks called Chakeipi, which meant "place of the beaver", and early white settlers referred to this village as Beaverdam. Lawrence Hall took up the first land claim in 1847 and established a grist mill. The e ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
University Of Maryland, College Park
The University of Maryland, College Park (University of Maryland, UMD, or simply Maryland) is a public land-grant research university in College Park, Maryland. Founded in 1856, UMD is the flagship institution of the University System of Maryland. It is also the largest university in both the state and the Washington metropolitan area, with more than 41,000 students representing all fifty states and 123 countries, and a global alumni network of over 388,000. Together, its 12 schools and colleges offer over 200 degree-granting programs, including 92 undergraduate majors, 107 master's programs, and 83 doctoral programs. UMD is a member of the Association of American Universities and competes in intercollegiate athletics as a member of the Big Ten Conference. The University of Maryland's proximity to the nation's capital has resulted in many research partnerships with the federal government; faculty receive research funding and institutional support from many agencies, such ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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 formed in 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. It formed as the Institute of Traffic Engineers and its first president was Ernest P. Goodrich. The organization consists of 10 districts, 62 sections, and 30 chapters from various parts of the world. Standards development ITE is also a standards development organization designated by the United States Department of Transportation (USDOT). One of the current standardizat ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
