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Third Harbor Tunnel
The Ted Williams Tunnel is a highway tunnel in Boston, Massachusetts. The third in the city to travel under Boston Harbor, with the Sumner Tunnel and the Callahan Tunnel, it carries the final segment of Interstate 90 (the Massachusetts Turnpike) from South Boston towards its eastern terminus at Route 1A in East Boston, slightly beyond Logan International Airport. The tunnel is named after the Boston Red Sox baseball legend and U.S. Marine Aviation veteran Ted Williams. History The Ted Williams Tunnel (TWT) was the first major link constructed as part of Boston's Big Dig. It is constructed from twelve "binocular" shaped steel sections fabricated in a Baltimore shipyard. These sections were then brought to the Black Falcon Pier near the site and each was fitted with a large surrounding mass of concrete (so that the tunnel section was more neutrally buoyant). Using additional flotation, the tunnel sections were then floated into place, lowered into a dredged channel, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Boston
Boston (), officially the City of Boston, is the state capital and most populous city of the Commonwealth of Massachusetts, as well as the cultural and financial center of the New England region of the United States. It is the 24th- most populous city in the country. The city boundaries encompass an area of about and a population of 675,647 as of 2020. It is the seat of Suffolk County (although the county government was disbanded on July 1, 1999). The city is the economic and cultural anchor of a substantially larger metropolitan area known as Greater Boston, a metropolitan statistical area (MSA) home to a census-estimated 4.8 million people in 2016 and ranking as the tenth-largest MSA in the country. A broader combined statistical area (CSA), generally corresponding to the commuting area and including Providence, Rhode Island, is home to approximately 8.2 million people, making it the sixth most populous in the United States. Boston is one of the oldest ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Big Dig (Boston, Massachusetts)
The Central Artery/Tunnel Project (CA/T Project), commonly known as the Big Dig, was a megaproject in Boston that rerouted the Central Artery of Interstate 93 (I-93), the chief highway through the heart of the city, into the 1.5-mile (2.4 km) tunnel named the Thomas P. O'Neill Jr. Tunnel. The project also included the construction of the Ted Williams Tunnel (extending I-90 to Logan International Airport), the Leonard P. Zakim Bunker Hill Memorial Bridge over the Charles River, and the Rose Kennedy Greenway in the space vacated by the previous I-93 elevated roadway. Initially, the plan was also to include a rail connection between Boston's two major train terminals. Planning began in 1982; the construction work was carried out between 1991 and 2006; and the project concluded on December 31, 2007, when the partnership between the program manager and the Massachusetts Turnpike Authority ended. The Big Dig was the most expensive highway project in the United States, and wa ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Logan Airport
General Edward Lawrence Logan International Airport , also known as Boston Logan International Airport and commonly as Boston Logan, Logan Airport or simply Logan, is an international airport that is located mostly in East Boston and partially in Winthrop, Massachusetts. It opened in 1923, covers , has six runways and four passenger terminals, and employs an estimated 16,000 people. It is the largest airport in both the Commonwealth of Massachusetts and the New England region in terms of passenger volume and cargo handling as well as the busiest airport in the Northeastern United States outside the New York metropolitan area. The airport saw 42 million passengers in 2019, the most in its history. It is named after General Edward Lawrence Logan, a 20th-century war hero native to Boston. Logan has non-stop service to destinations throughout the United States, Canada, Latin America, the Caribbean, the North Atlantic region (including Bermuda and the Azores), Europe, Africa, Asia, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Silver Line (MBTA)
The Silver Line is a system of bus routes in Boston and Chelsea, Massachusetts, operated by the Massachusetts Bay Transportation Authority (MBTA). It is operated as part of the MBTA bus system, but branded as bus rapid transit (BRT) as part of the MBTA subway system. Six routes are operated as part of two disconnected corridors. , weekday ridership on the Silver Line was 39,000. The four Waterfront routes operate out of an underground terminal at and run through the South Boston Piers Transitway – a dedicated bus tunnel through the Seaport District with stations at and . At , they fan out on the surface: the SL1 to Logan International Airport, the SL2 to Dry Dock Avenue, and the SL3 to via East Boston. An additional short turn route, SLW, runs only at peak hours between South Station and Silver Line Way. The Waterfront routes use articulated dual-mode buses that operate as electric trolleybuses in the Transitway and conventional diesel buses on the surface. Two routes oper ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
MBTA
The Massachusetts Bay Transportation Authority (abbreviated MBTA and known colloquially as "the T") is the public agency responsible for operating most public transportation services in Greater Boston, Massachusetts. The MBTA transit network includes the MBTA subway with three metro lines (the Blue, Orange, and Red lines), two light rail lines (the Green and Ashmont–Mattapan lines), and a five-line bus rapid transit system (the Silver Line); MBTA bus local and express service; the twelve-line MBTA Commuter Rail system, and several ferry routes. In , the system had a ridership of , or about per weekday as of , of which the rapid transit lines averaged and the light rail lines , making it the fourth-busiest rapid transit system and the third-busiest light rail system in the United States. As of , average weekday ridership of the commuter rail system was , making it the sixth-busiest commuter rail system in the U.S. The MBTA is the successor of several previous public a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mitt Romney
Willard Mitt Romney (born March 12, 1947) is an American politician, businessman, and lawyer serving as the junior United States senator from Utah since January 2019, succeeding Orrin Hatch. He served as the 70th governor of Massachusetts from 2003 to 2007 and was the Republican Party's nominee for president of the United States in the 2012 election, losing to Barack Obama. Raised in Bloomfield Hills, Michigan, by George and Lenore Romney, he spent over two years in France as a Mormon missionary. He married Ann Davies in 1969; they have five sons. Active in the Church of Jesus Christ of Latter-day Saints (LDS Church) throughout his adult life, Romney served as bishop of his ward and later as a stake president for an area covering Boston and many of its suburbs. By 1971, he had participated in the political campaigns of both his parents. In 1971 Romney graduated with a Bachelor of Arts in English from Brigham Young University (BYU) and in 1975 he received a JD–MBA degree ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Boston Traffic Re-routed Ted Williams Tunnel, 2006
Boston (), officially the City of Boston, is the state capital and most populous city of the Commonwealth of Massachusetts, as well as the cultural and financial center of the New England region of the United States. It is the 24th- most populous city in the country. The city boundaries encompass an area of about and a population of 675,647 as of 2020. It is the seat of Suffolk County (although the county government was disbanded on July 1, 1999). The city is the economic and cultural anchor of a substantially larger metropolitan area known as Greater Boston, a metropolitan statistical area (MSA) home to a census-estimated 4.8 million people in 2016 and ranking as the tenth-largest MSA in the country. A broader combined statistical area (CSA), generally corresponding to the commuting area and including Providence, Rhode Island, is home to approximately 8.2 million people, making it the sixth most populous in the United States. Boston is one of the oldest municip ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Fast Lane (E-ZPass)
Fast Lane was the original branding for the electronic toll collection system used on toll roads in Massachusetts Massachusetts (Massachusett language, Massachusett: ''Muhsachuweesut [Massachusett writing systems, məhswatʃəwiːsət],'' English: , ), officially the Commonwealth of Massachusetts, is the most populous U.S. state, state in the New England ..., including the Massachusetts Turnpike, Sumner Tunnel, Ted Williams Tunnel, and Tobin Bridge. It was introduced in 1998, and later folded into the E-ZPass branding in 2012. Fast Lane transponders were fully interoperable with member agencies of the E-ZPass Interagency Group, however Fast Lane transponders (or the "E-ZPass MA" replacement transponders exclusive to Massachusetts) afford users discounted tolls in some junctions that out-of-state users are not offered. In 2012 the Department of Transportation began the process of converting all existing Fast Lanes to E-ZPass lanes and also began to phase out the Fast Lane ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
E-ZPass
E-ZPass is an electronic toll collection system used on toll roads, toll bridges, and toll tunnels in the Eastern United States, Midwestern United States, and Southern United States. The E-ZPass Interagency Group (IAG) consists of member agencies in several states, which use the same technology and allow travelers to use the same transponder on toll roads throughout the network. Since its creation in 1987, various independent systems that use the same technology have been folded into the E-ZPass system, including the I-PASS in Illinois and the NC Quick Pass in North Carolina. Negotiations are ongoing for nationwide interoperability in the United States (see ). Functionality Technology E-ZPass tags are active RFID transponders, historically made by Kapsch#Kapsch TrafficCom AG (KTC), Kapsch TrafficCom (formerly Mark IV Industries Corp—IVHS Division) under a competitively bid contract. They communicate with reader equipment built into lane-based or Open road tolling, o ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Toll Tunnel
A toll tunnel is a road tunnel where a monetary charge (or ''toll'') is required to pass through. List of toll tunnels United States Alaska Maryland Massachusetts Michigan / Ontario, Canada New Jersey / New York New York Texas Virginia Washington Tolls removed * Hampton Roads Bridge-Tunnel, between Hampton and Norfolk, Virginia South Africa * Huguenot Tunnel, South Africa United Kingdom * Dartford Crossing, Kent to Essex * Kingsway Tunnel, Wallasey to Liverpool * Queensway Tunnel, Birkenhead to Liverpool * Tyne Tunnel, North Shields to South Shields Ireland * Dublin Port Tunnel, Dublin * Limerick Tunnel, Limerick Australia * Burnley and Domain Tunnels, CityLink, Melbourne * Melba and Mullum-Mullum Tunnels, EastLink, Melbourne * Sydney Harbour Tunnel * Clem Jones Tunnel, Brisbane Queensland * Airport Link, Brisbane, Brisbane Queensland * Legacy Way, Brisbane Queensland Belgium * Liefkenshoek Tunnel, Antwerp Netherlands * Western Scheldt Tunnel, Terneu ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Buoyancy
Buoyancy (), or upthrust, is an upward force exerted by a fluid that opposes the weight of a partially or fully immersed object. In a column of fluid, pressure increases with depth as a result of the weight of the overlying fluid. Thus the pressure at the bottom of a column of fluid is greater than at the top of the column. Similarly, the pressure at the bottom of an object submerged in a fluid is greater than at the top of the object. The pressure difference results in a net upward force on the object. The magnitude of the force is proportional to the pressure difference, and (as explained by Archimedes' principle) is equivalent to the weight of the fluid that would otherwise occupy the submerged volume of the object, i.e. the displaced fluid. For this reason, an object whose average density is greater than that of the fluid in which it is submerged tends to sink. If the object is less dense than the liquid, the force can keep the object afloat. This can occur only in a no ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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