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The Trans-Texas Corridor (TTC) was a proposal for a transportation network in the U.S. State of Texas that was conceived to be composed of a new kind of transportation modality known as supercorridors. The TTC was initially proposed in 2001 and after considerable controversy was discontinued by 2010 in the planning and early construction stages. The network, as originally envisioned, would have been composed of a network of supercorridors up to wide to carry parallel links of tollways, rails, and utility lines.〔(Crossroads of the Americas: Trans Texas Corridor Plan Report Summary )〕 It was intended to route long-distance traffic around population centers, and to provide stable corridors for future infrastructure improvements–such as new power lines from wind farms in West Texas to the cities in the east–without the otherwise often lengthy administrative and legal procedures required to build on privately owned land. The tollway portion would have been divided into two separate elements: truck lanes and lanes for passenger vehicles. Similarly, the rail lines in the corridor would have been divided among freight, commuter, and high-speed rail. The Texas Department of Transportation (TxDOT) intended to "charge public and private concerns for utility, commodity or data transmission" within the corridor,〔(Crossroads of the Americas: Trans Texas Corridor Plan « TTC 69 )〕 in essence making a toll road for services such as water, electricity, natural gas, petroleum, fiber optic lines, and other telecommunications services. The network would have been funded by private investors and built and expanded as demand warrants. In 2009, TxDOT decided to phase out the all-in-one corridor concept in favor of developing separate rights-of-way for road, rail, and other infrastructure using more traditional corridor widths for those modes.〔(TxDOT Press Release, "TxDOT Announces Updated Vision for Trans-Texas Corridor." Retrieved March 25, 2009. )〕 In 2010, official decision of "no action" was issued by the Federal Highway Administration, formally ending the project. The action eliminated the study area and canceled the agreement between TxDOT and Cintra-Zachry. In 2011, the Texas Legislature formally canceled the Trans-Texas Corridor with the passage of HB 1201.〔(【引用サイトリンク】title=Texas Legislature Online - 82(R) History for HB 1201 )〕 ==Network== The TTC was hoped to be a multi-use, state-wide system that would have included new and existing highways, railways, and utility rights-of-way. According to the ''Houston Chronicle'', on January 6, 2009, "In response to public outcry, the ambitious proposal to create the Trans-Texas Corridor network has been dropped and will be replaced with a plan to carry out road projects at an incremental, modest pace".〔By ROSANNA RUIZ , JANET ELLIOTT and R.G. RATCLIFFE Copyright 2009 Houston Chronicle〕 The network was proposed to include separate lanes for passenger and truck traffic, freight and high-speed commuter railways, and infrastructure for utilities, including water, oil, and gas pipelines; electricity; along with broadband and other telecommunications services. Although the model corridor design incorporates all of these elements running in parallel within a shared right-of-way, more recent plans suggested that existing rail and road corridors could be used for some components of the TTC. The model corridor design also represented the ultimate build-out of a corridor section, which would not have been realized for decades, if at all, as corridor segments and components were planned to be built based on traffic demand. The Texas Department of Transportation (TxDOT) attempted to provide oversight for planning, construction, and maintenance while day-to-day operations would have been performed by private companies.〔(TTC overview )〕 In March 2005, TxDOT and Cintra-Zachry signed a comprehensive development agreement which authorized $3.5 million of planning for TTC-35. This agreement did not designate the alignment, authorize construction, set toll rates or who collects them, and did not eliminate competition for future services.〔(TTC contracts & agreements )〕 There were no contracts awarded to develop or finance any other corridor.〔(I-69/TTC contracts & agreements )〕 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「Trans-Texas Corridor」の詳細全文を読む スポンサード リンク
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