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The National Highways Development Project is a project to upgrade, rehabilitate and widen major highways in India to a higher standard. The project was implemented in 1998 under the leadership of Atal Bihari Vajpayee. "National Highways" account for only about 2% of the total length of roads, but carry about 40% of the total traffic across the length and breadth of the country. This project is managed by the National Highways Authority of India (NHAI) under the Ministry of Road, Transport and Highways. The NHAI has invested US$71 billion for this project, as of 2006. The NHDP represents 49,260 kms of roads and highways work and construction in order to boost economic development of the country. ==Phases== The project is composed of the following phases: * Phase I: The Golden Quadrilateral (GQ; 5,846 km) connecting the four major cities of Delhi, Mumbai, Chennai and Kolkata. This project connecting four metro cities, would be . Total cost of the project is Rs.300 billion (US$6.8 billion), funded largely by the government’s special petroleum product tax revenues and government borrowing. In January 2012, India announced the four lane GQ highway network as complete.〔(【引用サイトリンク】publisher=The Indian Express )〕〔(【引用サイトリンク】title=National Highways Development Project Map )〕 * Phase II: North-South and East-West corridors comprising national highways connecting four extreme points of the country. The North–South and East–West Corridor (NS-EW; 7,300 km) connecting Srinagar in the north to Kanyakumari in the south, including spur from Salem to Kanyakumari (Via Coimbatore and Kochi) and Silchar in the east to Porbandar in the west. Total length of the network is . As of April 2012, 84.26% of the project had been completed and 15.7% of the project work is currently at progress.〔(NS & EW corridor ). National Highways Authority of India.〕 It also includes Port connectivity and other projects — . The final completion date to February 28, 2009 at a cost of Rs.350 billion (US$8 billion), with funding similar to Phase I. * Phase III: The government recently approved NHDP-III to upgrade of national highways on a Build, Operate and Transfer (BOT) basis, which takes into account high-density traffic, connectivity of state capitals via NHDP Phase I and II, and connectivity to centres of economic importance. Contracts have been awarded for a . * Phase IV: The government is considering widening of highway that were not part of Phase I, II, or III. Phase IV will convert existing single lane highways into two lanes with paved shoulders. The plan will soon be presented to the government for approval. * Phase V: As road traffic increases over time, a number of four lane highways will need to be upgraded/expanded to six lanes. The current plan calls for upgrade of about of four-lane roads, although the government has not yet identified the stretches. * Phase VI: The government is working on constructing expressways that would connect major commercial and industrial townships. It has already identified of Vadodara (earlier Baroda)-Mumbai section that would connect to the existing Vadodara (earlier Baroda)-Ahmedabad section. The World Bank is studying this project. The project will be funded on BOT basis. The Expressway between Chennai—Bangalore and Expressway between Kolkata—Dhanbad has been identified and feasibility study and DPR contract has been awarded by NHAI. * Phase VII: This phase calls for improvements to city road networks by adding ring roads to enable easier connectivity with national highways to important cities. In addition, improvements will be made to stretches of national highways that require additional flyovers and bypasses given population and housing growth along the highways and increasing traffic. The government has not yet identified a firm investment plan for this phase. The long Chennai Port—Maduravoyal Elevated Expressway is being executed under this phase. Note: 1 crore= 10 million 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「National Highways Development Project」の詳細全文を読む スポンサード リンク
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