| 翻訳と辞書 |
| Elizabeth River Tunnels Project ： ウィキペディア英語版 |
Elizabeth River Tunnels Project
The Elizabeth River Tunnels Project, a series of transportation projects in the South Hampton Roads region of Virginia, comprises the rehabilitation of the Downtown and existing Midtown Tunnels, the construction of a new parallel Midtown Tunnel, and the extension of the MLK Freeway/U.S. 58 to I-264. Intended to reduce congestion on area surface streets and arterial roads, the project is being administered by Elizabeth River Crossings (ERC) and Virginia Department of Transportation as part of a 58-year public-private partnership concession that will cost about $2.1 billion (2012) to complete.
==History==
Transportation around South Hampton Roads is complicated by the various branches of the Elizabeth River (Virginia), which are crossed by two major highways. The busiest spur route in the area, I-264, crosses the river's Eastern Branch (via the Berkley Bridge) and its Southern Branch (via the Downtown Tunnel). Built in 1952, the westbound Downtown Tunnel is the oldest tunnel in Hampton Roads; much of it, including its ceiling tiles, has reached or exceeded its designed service life and requires repairs. The eastbound tube, built in 1987, also requires maintenance, as well as several updates to comply with NFPA 502 regulations.
The primary alternate route to the Downtown Tunnel is the Midtown Tunnel upstream. Built in 1962 to carry U.S. 58, the Midtown allows direct access to Portsmouth without passing through Downtown. Built with one lane in both directions, it served nearly 8,400 vehicles per day in its first operating year and nearly 40,000 per day in 2013, making it the "most heavily traveled two-lane road east of the Mississippi", according to VDOT and ERC. Traffic is projected to rise to nearly 50,000 vehicles per day by 2026.
The Martin Luther King Jr. Freeway carries U.S. 58 after the Midtown Tunnel to its surface-street connection on London Boulevard in Portsmouth. As part of the long-term plan, regional leaders and VDOT looked to extend the freeway from its terminus at London Boulevard down to I-264, creating a highway-speed alternate that connected I-264 to the Midtown Tunnel and the new Western Freeway. Efforts to extend the MLK Freeway have been in the works with VDOT as far back as the early 1990s, when the agency completed its initial environmental assessment. The project received a new environmental assessment in 1999, when VDOT began pursuing the parallel Midtown Tunnel.
抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』
■ウィキペディアで「Elizabeth River Tunnels Project」の詳細全文を読む
スポンサード リンク
| 翻訳と辞書 : 翻訳のためのインターネットリソース |
Copyright(C) kotoba.ne.jp 1997-2016. All Rights Reserved.
|
|