



下載本文檔
版權(quán)說明:本文檔由用戶提供并上傳,收益歸屬內(nèi)容提供方,若內(nèi)容存在侵權(quán),請進行舉報或認領(lǐng)
文檔簡介
1、Boston Big Dig-BackgroundThe problemsBoston, Massachusetts had a world-class traffic problem, an elevated six-lane highway called the Central Artery that ran through the center of downtown. When it opened in 1959, the Central Artery comfortably carried about 75,000 vehicles a day. It has carried upw
2、ards of 200,000, quite uncomfortably, making it one of the most congested highways in the United States.And traffic wasnt the only problem the old Central Artery caused in Boston. The elevated highway (which displaced 20,000 residents when it was built) also cut off Bostons North End and Waterfront
3、neighborhoods from the downtown, limiting these areas ability to participate in the citys economic life. 1Boston Big Dig - SolutionsThe projects two major components: Replacing the six-lane elevated highway with an eight-to-ten-lane underground expressway directly beneath the existing road, culminat
4、ing at its northern limit in a 14-lane, two-bridge-crossing of the Charles River. After the underground highway opened to traffic, the crumbling elevated wasdemolished and in its placewill beopen space and modest development. The extension of I-90 (the Massachusetts Turnpike) from its former terminu
5、s south of downtown Boston through a tunnel beneath South Boston and Boston Harbor to Logan Airport. The first link in this new connection- the four-lane Ted Williams Tunnel under the harbor- was finished in December 1995. The new bridge replaced a deteriorating six lane double-deck bridge that was
6、demolished in spring 2004. 2The .75-mile underwater part of the 1.6 mile tunnel was built using a dozen steel tube sections, each longer than a football field, that were sunk into a trench on the Boston Harbor floor and connected togetherThe underwater portion of the tunnel is actually made up of tw
7、elve binocular shaped steel tubes.Now that connections to the Massachusetts Turnpike (I-90) and Route 1A are in place, use of the tunnel is open to all vehicles. Unlimited use of the tunnel for all began in mid-January 2003 upon the opening of the Mass Pike extension, which connects to the Ted Willi
8、ams Tunnel. Solutions - Ted Williams Tunnel3Boston Big Dig - Open SpacesNashua Street ParkThe Central Artery/Tunnel Project is creating about 40 acres of park and recreational space along the Charles River Basin. This aerial view shows the 2.5 acre Nashua Street Park, set to open in September. Open spa
溫馨提示
- 1. 本站所有資源如無特殊說明,都需要本地電腦安裝OFFICE2007和PDF閱讀器。圖紙軟件為CAD,CAXA,PROE,UG,SolidWorks等.壓縮文件請下載最新的WinRAR軟件解壓。
- 2. 本站的文檔不包含任何第三方提供的附件圖紙等,如果需要附件,請聯(lián)系上傳者。文件的所有權(quán)益歸上傳用戶所有。
- 3. 本站RAR壓縮包中若帶圖紙,網(wǎng)頁內(nèi)容里面會有圖紙預(yù)覽,若沒有圖紙預(yù)覽就沒有圖紙。
- 4. 未經(jīng)權(quán)益所有人同意不得將文件中的內(nèi)容挪作商業(yè)或盈利用途。
- 5. 人人文庫網(wǎng)僅提供信息存儲空間,僅對用戶上傳內(nèi)容的表現(xiàn)方式做保護處理,對用戶上傳分享的文檔內(nèi)容本身不做任何修改或編輯,并不能對任何下載內(nèi)容負責。
- 6. 下載文件中如有侵權(quán)或不適當內(nèi)容,請與我們聯(lián)系,我們立即糾正。
- 7. 本站不保證下載資源的準確性、安全性和完整性, 同時也不承擔用戶因使用這些下載資源對自己和他人造成任何形式的傷害或損失。
最新文檔
- 2024-2025公司主要負責人安全培訓(xùn)考試試題附參考答案(達標題)
- 2025年企業(yè)安全培訓(xùn)考試試題答案考題
- 《民法學(xué)課件》課件-第八編-第二十九章 債的概述
- 建筑企業(yè)精益化成本與利潤管理培訓(xùn)
- 空氣增濕器及減濕器企業(yè)數(shù)字化轉(zhuǎn)型與智慧升級戰(zhàn)略研究報告
- 自動離心離合器企業(yè)縣域市場拓展與下沉戰(zhàn)略研究報告
- 噴涂機器人企業(yè)數(shù)字化轉(zhuǎn)型與智慧升級戰(zhàn)略研究報告
- 道路貨物運輸輔助活動企業(yè)ESG實踐與創(chuàng)新戰(zhàn)略研究報告
- 自由或系留氣球企業(yè)ESG實踐與創(chuàng)新戰(zhàn)略研究報告
- 稀有金屬涂層材料企業(yè)ESG實踐與創(chuàng)新戰(zhàn)略研究報告
- 低成本自動化的開展與案例課件
- 不予受理反訴民事上訴狀(標準版)
- 高中英語語法之虛擬語氣(課件3份)
- 國際石油合作主要合同模式課件
- 花的生長過程課件
- 環(huán)境保護、水土保持工作檢查記錄
- TSG 81-2022 場(廠)內(nèi)專用機動車輛安全技術(shù)規(guī)程
- 客戶生命周期管理理論分析報告(共17頁).ppt
- 事業(yè)單位同意報考證明
- 音調(diào)控制電路課件
- N-TWI日產(chǎn)標準作業(yè)的設(shè)定課件
評論
0/150
提交評論