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Alaskan Way Viaduct Replacement Tunnel
The State Route 99 tunnel, also known as the Alaskan Way Viaduct replacement tunnel, is a bored highway tunnel in the city of Seattle, Washington, United States. The , double-decker tunnel carries a section of State Route 99 (SR 99) under Downtown Seattle from SoDo in the south to South Lake Union in the north. Since the 2001 Nisqually earthquake, the replacement of the Alaskan Way Viaduct had been the source of much political controversy demonstrating the Seattle process. Options for replacing the viaduct, which carried 110,000 vehicles per day, included replacing it with a cut-and-cover tunnel or a bored tunnel, replacing it with another elevated highway, or eliminating it while modifying other surface streets and public transportation. The current plan emerged in 2009 when government officials agreed to a deep-bore tunnel. Construction began in July 2013 using "Bertha", at the time the world's largest-diameter tunnel boring machine. After several delays, tunnel boring ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Seattle
Seattle ( ) is a seaport city on the West Coast of the United States. It is the seat of King County, Washington. With a 2020 population of 737,015, it is the largest city in both the state of Washington and the Pacific Northwest region of North America. The Seattle metropolitan area's population is 4.02 million, making it the 15th-largest in the United States. Its growth rate of 21.1% between 2010 and 2020 makes it one of the nation's fastest-growing large cities. Seattle is situated on an isthmus between Puget Sound (an inlet of the Pacific Ocean) and Lake Washington. It is the northernmost major city in the United States, located about south of the Canadian border. A major gateway for trade with East Asia, Seattle is the fourth-largest port in North America in terms of container handling . The Seattle area was inhabited by Native Americans for at least 4,000 years before the first permanent European settlers. Arthur A. Denny and his group of travelers, subsequ ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Seattle Magazine
Seattle ( ) is a seaport city on the West Coast of the United States. It is the seat of King County, Washington. With a 2020 population of 737,015, it is the largest city in both the state of Washington and the Pacific Northwest region of North America. The Seattle metropolitan area's population is 4.02 million, making it the 15th-largest in the United States. Its growth rate of 21.1% between 2010 and 2020 makes it one of the nation's fastest-growing large cities. Seattle is situated on an isthmus between Puget Sound (an inlet of the Pacific Ocean) and Lake Washington. It is the northernmost major city in the United States, located about south of the Canadian border. A major gateway for trade with East Asia, Seattle is the fourth-largest port in North America in terms of container handling . The Seattle area was inhabited by Native Americans for at least 4,000 years before the first permanent European settlers. Arthur A. Denny and his group of travelers, subsequently kno ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Repeater
In telecommunications, a repeater is an electronic device that receives a signal and retransmits it. Repeaters are used to extend transmissions so that the signal can cover longer distances or be received on the other side of an obstruction. Some types of repeaters broadcast an identical signal, but alter its method of transmission, for example, on another frequency or baud rate. There are several different types of repeaters; a telephone repeater is an amplifier in a telephone line, an optical repeater is an optoelectronic circuit that amplifies the light beam in an optical fiber cable; and a radio repeater is a radio receiver and transmitter that retransmits a radio signal. A broadcast relay station is a repeater used in broadcast radio and television. Overview When an information-bearing signal passes through a communication channel, it is progressively degraded due to loss of power. For example, when a telephone call passes through a wire telephone line, some of the powe ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
GeekWire
GeekWire is an American technology news website that covers startups and established technology companies. The site launched in March 2011 and is based in Seattle. It was founded by journalists Todd Bishop and John Cook with investment from Jonathan Sposato. GeekWire founders John Cook and Todd Bishop were former technology reporters at the Seattle Post-Intelligencer and the Puget Sound Business Journal. Bishop and Cook joined the Puget Sound Business Journal to create TechFlash in September 2008, leaving to start GeekWire on March 7, 2011. GeekWire is regularly featured on the Techmeme Techmeme is a technology news aggregator. The website has been described as "a one-page, aggregated, filtered, archiveable summary in near real-time of what is new and generating conversation". Overview Gabe Rivera was a compiler software engin ... leaderboard as one of the sources most frequently posted to that site. References External links * American technology news websites Intern ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Seattle Daily Journal Of Commerce
The ''Seattle Daily Journal of Commerce'' is a daily (six days per week) newspaper based in Seattle, Washington. Specializing in business, construction, real estate, and legal news and public notices, it began publication in 1895 as the ''Bulletin'', later the ''Daily Bulletin'' and the ''Seattle Daily Bulletin''. After merging with the ''Times'' in 1907 (an unrelated paper to today's ''Seattle Times''), it published as the ''Morning Times and Seattle Daily Bulletin'' for a year before reverting to its old name. It took the name ''Daily Journal of Commerce'' for the first time in 1919 as the ''Daily Journal of Commerce and the Daily Bulletin'', dropping the ''Daily Bulletin'' portion two years later. "Seattle" was added to the paper's name in 1924. From 1951 to 1956 the paper was published under the name ''Seattle Daily Journal of Commerce and Construction Record'', and then as the ''Seattle Daily Journal of Commerce and Northwest Construction Record'' until 1989, when it once aga ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Fire Sprinkler System
A fire sprinkler system is an active fire protection method, consisting of a water supply system, providing adequate pressure and flowrate to a water distribution piping system, onto which fire sprinklers are connected. Although historically only used in factories and large commercial buildings, systems for homes and small buildings are now available at a cost-effective price. Fire sprinkler systems are extensively used worldwide, with over 40 million sprinkler heads fitted each year. Even though Fire Sprinkler Systems are a Life Saving System and are not designed to protect the building, 96% of buildings that had fires and were completely protected by fire sprinkler systems were controlled by the fire sprinklers alone. History Leonardo da Vinci designed a sprinkler system in the 15th century. Leonardo automated his patron's kitchen with a super-oven and a system of conveyor belts. In a comedy of errors, everything went wrong during a huge banquet, and a fire broke out. "Th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Fiber Optic
An optical fiber, or optical fibre in Commonwealth English, is a flexible, transparent fiber made by drawing glass (silica) or plastic to a diameter slightly thicker than that of a human hair. Optical fibers are used most often as a means to transmit light between the two ends of the fiber and find wide usage in fiber-optic communications, where they permit transmission over longer distances and at higher bandwidths (data transfer rates) than electrical cables. Fibers are used instead of metal wires because signals travel along them with less loss; in addition, fibers are immune to electromagnetic interference, a problem from which metal wires suffer. Fibers are also used for illumination and imaging, and are often wrapped in bundles so they may be used to carry light into, or images out of confined spaces, as in the case of a fiberscope. Specially designed fibers are also used for a variety of other applications, some of them being fiber optic sensors and fiber lasers. Op ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Shoreline, Washington
Shoreline is a city in King County, Washington, United States. It is located between the city limits of Seattle and the Snohomish County border, approximately north of Downtown Seattle. As of the 2020 census, the population of Shoreline was 58,608, making it the 22nd largest city in the state. Based on per capita income, one of the more reliable measures of affluence, Shoreline ranks 91st of 522 areas in the state of Washington to be ranked. History Shoreline began in 1890 with the platting of the neighborhood of Richmond Beach, on Puget Sound, in anticipation of the arrival of the Great Northern Railway the next year. Over the next two decades, Shoreline was connected to Seattle via the Seattle- Everett Interurban streetcar line (1906) and North Trunk Road (now Aurora Avenue N., State Route 99) (1913), helping to increase its population. The name "Shoreline" was applied to this stretch of unincorporated King County in 1944 when it was given to the school district, since the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
CCTV
Closed-circuit television (CCTV), also known as video surveillance, is the use of video cameras to transmit a signal to a specific place, on a limited set of monitors. It differs from broadcast television in that the signal is not openly transmitted, though it may employ point-to-point (P2P), point-to-multipoint (P2MP), or mesh wired or wireless links. Even though almost all video cameras fit this definition, the term is most often applied to those used for surveillance in areas that require additional security or ongoing monitoring (Videotelephony is seldom called "CCTV"). Surveillance of the public using CCTV is common in many areas around the world. In recent years, the use of body worn video cameras has been introduced as a new form of surveillance, often used in law enforcement, with cameras located on a police officer's chest or head. Video surveillance has generated significant debate about balancing its use with individuals' right to privacy even when in public. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Emergency Phone
An emergency telephone is a telephone, phone specifically provided for making calls to emergency services and is most often found in a place of special danger or where it is likely that there will be a need to make emergency calls. It is also sometimes known as blue lights. Roadside emergency telephones Although it is difficult to determine when and where the earliest highway emergency phones were developed, undoubtedly one of the earliest examples were the freeway phones developed in Western Australia in 1966. This system was developed by Alan Harman, an employee of a Western Australian security firm, Central Station Security Company, Electronic Signals Pty Ltd, who came up with the idea after reading of a pile-up on the Kwinana Freeway. The newspaper article mentioned that assistance had been difficult to provide to those involved in the pile-up. The system Harman envisaged was a series of telephone units in a box on a short post, spaced every on Perth’s freeways. Picking up ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Variable Message Sign
A variable- (also changeable-, electronic-, or dynamic-) message sign, often abbreviated VMS, CMS, or DMS, and in the UK known as a matrix sign, is an electronic traffic sign often used on roadways to give travelers information about special events. Such signs warn of traffic congestion, accidents, incidents such as terrorist attacks, AMBER/Silver/Blue Alerts, roadwork zones, or speed limits on a specific highway segment. In urban areas, VMS are used within parking guidance and information systems to guide drivers to available car parking spaces. They may also ask vehicles to take alternative routes, limit travel speed, warn of duration and location of the incidents, inform of the traffic conditions, or display general public safety messages. History VMS systems were deployed at least as early as the 1950s on the New Jersey Turnpike. The NJ Turnpike's signs of that period, and up to around 2012, were capable of displaying a few messages in neon, all oriented around warning d ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Area Of Refuge
An area of refuge or safe room is a place in a building designed to hold occupants during a fire or other emergency when evacuation may not be safe or possible. Occupants can wait there until rescued or relieved by firefighters. In some instances, an area of refuge or refuge area may refer to a designated space in a multi-unit residential building that can provide relief from unsafe or uncomfortable conditions in individual units. Beneficiaries People who use refuge areas may include: *Those who cannot reach a safe escape route *Those assisting people who are prevented from escaping *Hospital patients *Sick people *People with disabilities *Elderly people *Very young children and infants *Medical personnel who may be operating on a patient at the time of the emergency *Operators in a critical facility whose function must not be interrupted, such as nuclear power stations, key military fortifications, and high security prisons Technical requirements An area of refuge is typical ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
