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INTERIM IPCS SYSTEM

机译:临时IPCS系统

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摘要

Boston, Massachusetts is a 1st class U.S. city beaming with high technology, higher education,rnexcellent financial services, exceptional healthcare and fastidious medical research.rnHowever, Boston had a world-class traffic problem, an elevated six-lane highway called thernCentral Artery ran through the center of downtown. When it opened in 1959, the Central Arteryrncomfortably carried 75,000 vehicles per day. It has carried upwards of 200,000, quiternuncomfortably, making it one of the most congested highways in the United States.rnTraffic has crawled for more than 10 hours each day. The accident rate on the deterioratingrnelevated highway was four times the national average for urban Interstates. Without majorrnimprovements to the Central Artery and the harbor crossings, Boston would have expected arnstop-and-go traffic jam for up to 16 hours a day – every waking hour – by 2010.rnThe annual cost to motorists from this congestion – in terms of an elevated accident rate, wastedrnfuel from idling in stalled traffic, and late delivery charges – was estimated to be $500 million.rnThe solution, the Central Artery/Tunnel Project (CA/T), overseen by the Massachusetts TurnpikernAuthority (MTA), replaces this traffic travesty with two major components I-93 Northbound (I-rn93 NB), I-93 Southbound (I-93 SB) and I-90 Eastbound (I-90 EB), I-90 Westbound (I-90 WB).rnTo the north, the new Liberty Tunnel replaces the elevated Central Artery with a 5-lanernunderground expressway. The northbound connection opened in March 2003. To the south, thernnew I-93 SB tunnel replaces the elevated Central Artery with a 5-lane underground expressway.rnThe southbound connection was opened in December 2003. These tunnels connect to the 10-rnlane, cable-stayed Leonard P. Zakim Bunker Hill Bridge over the Charles River.rnThe CA/T is public works on a scale comparable to some of the great projects of the last century,rnthe Panama Canal, the English Channel Tunnel (the "Chunnel"), the Trans-Alaska Pipeline. Eachrnof these projects presented unique challenges: The Panama Canal confronted earthslides, malaria,rnyellow fever, and Central American jungles. The Chunnel was dug from either end, 31 milesrnapart, meeting at a precise point under the channel floor. The Alaska Pipeline contended withrnvast distances, freezing temperatures, and major environmental concerns.rnThe Central Artery project's unique challenge has been to maintain traffic capacity and access tornresidents and businesses – to keep the city open for business – throughout construction.rnThe project spans 8 miles of highway, 160 lanes miles, 80 of which are in tunnels. In all, thernCA/T is placing 3.8 million cubic yards of concrete – the equivalent of 2,350 acres, one footrnthick – and excavating more than 16 million cubic yards of soil.rnAt project completion, I-93 NB and I-93 SB will be carrying 245,000 vehicles a day,rncomfortably, with normal urban peak periods of two hours in the morning and evening. Throughrntraffic will travel at high speed. Carbon monoxide levels in Boston's air are projected to bernreduced 12 % due to traffic moving rather than gridlocked highway. The unsightly greenrnelevated highway is gone, soon to be replaced by 27 acres of new parks and open space.rnThe Integrated Project Control System (IPCS) is a critical part of the CA/T. The mission of thernIPCS is to facilitate the safe and efficient flow of people, vehicles, goods and services and torncontrol ventilation, power, drainage, lighting, access, fire and radio communications within thernproject limits. The system ensures that motorists are not exposed to high levels of carbonrnmonoxide.
机译:马萨诸塞州波士顿市是美国一流的城市,拥有高科技,高等教育,出色的金融服务,卓越的医疗保健和严谨的医学研究。然而,波士顿遇到了世界一流的交通问题,一条名为thernCentral Artery的高架六车道高速公路贯穿市中心。 1959年开放时,中央动脉每天舒适地运送75,000辆汽车。它已经运载了200,000多条路,非常不舒服,使其成为美国最拥挤的高速公路之一。rnTraffic每天爬网超过10个小时。不断恶化的高速公路上的事故率是全国州际公路平均水平的四倍。如果不对中央动脉和海港过境点进行重大改进,到2010年,波士顿预计每天通行都会发生每天16个小时的通行拥堵。每个拥堵小时,通勤者每年因交通拥堵而付出的成本为-高事故率,因交通阻塞而空转造成的燃料浪费以及逾期交付费用–估计为5亿美元。由马萨诸塞州TurnpikernAuthority(MTA)监督的中央动脉/隧道项目(CA / T)解决方案取代了这种交通具有两个主要组成部分的出差旅行:I-93北行(I-rn93 NB),I-93南行(I-93 SB)和I-90东行(I-90 EB),I-90西行(I-90 WB)。在北部,新的自由隧道(Liberty Tunnel)取代了高架的中央动脉(Central Artery),由一条5巷道的地下高速公路取代。北向连接线于2003年3月开放。向南,新的I-93 SB隧道以5车道地下高速公路取代了高架的中央动脉。rn南向连接线于2003年12月开放。这些隧道连接到10线向的电缆停留在查尔斯河上的伦纳德·P·扎基姆·邦克山大桥。rnCA/ T是一项公共工程,其规模可与上世纪的一些重大项目媲美,即巴拿马运河,英吉利海峡隧道(“通道”) ,跨阿拉斯加管道。这些项目每个都带来了独特的挑战:巴拿马运河面临滑坡,疟疾,狂热和中美洲丛林。通道是从任一端挖出的31英里,在通道底下的一个精确点相遇。阿拉斯加管道争夺距离,冰冻温度和主要环境问题。rn中央动脉项目的独特挑战是在整个施工过程中保持交通容量和居民和企业的通行能力,以保持城市正常营业。rn该项目跨越了8英里。高速公路,车道长160英里,其中80条在隧道中。总的来说,rnCA / T正在浇筑380万立方码的混凝土(相当于2350英亩,一英尺厚),并开挖超过1600万立方码的土壤。rn在项目完成时,I-93 NB和I-93 SB将每天舒适地运送245,000辆汽车,通常城市早晚高峰时间为两个小时。交通流量将高速行驶。波士顿的空气中的一氧化碳水平预计将由于交通而不是高速公路拥堵而减少12%。难看的高架公路已经消失,不久将被27英亩的新公园和开放空间所取代。集成项目控制系统(IPCS)是CA / T的重要组成部分。 IPCS的任务是促进人员,车辆,货物和服务的安全和高效流动,并在项目范围内对通风,电力,排水,照明,通道,消防和无线电通讯进行控制破损。该系统可确保驾驶者不会暴露于高水平的一氧化碳。

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    ANTHONY FEDERICO;

  • 作者单位

    451 D StreetrnBoston, MA 02111rnTelephone: (617) 235-3015rnFax: (617) 428-3952rnAdfederi@BigDig.comrnLead Design Engineer for the Central Artery / Tunnel ProjectrnCurrent Affiliations: BICSI, IEEE, NFPA;

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