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历经五十多年的积累和打造,广西路桥建设有限公司充满了实力,充满了活力,充满了自信。从广西第一条高速公路到新疆边陲高速公路,从第一拱重庆朝天门长江大桥到亚洲第二、广西第一高的拉会大桥……一个个项目被我们征服。在征战国内 相似文献
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桂林航道管理局航道航标科 《西部交通科技》2013,(1):90-91
漓江的桂林至阳朔段航道长89.2km,是桂林市旅游的黄金水道,沿河两岸“山清、水秀、洞奇、石美”,还有“深潭、险滩、流泉、飞瀑”佳景,河道蜿蜒曲折,流经喀斯特蜂林谷地之间,山光水色交相辉映,素有“桂林山水甲天下”之美誉,是酋批国家4A级旅游景区和举世闻名的旅游胜地。 相似文献
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The purpose of an economic appraisal of a transportation project is to help select an efficient transportation investment plan. Here, efficiency means achieving the best transportation service from a given investment and the generation of net benefits at least as great as the costs of the investment. In this article, three future transportation investment alternatives in the USA are compared using the benefit-cost ratio method to illustrate the economic desirability of the AVCS Maglev alternative – an advanced vehicle control system based on magnetic levitation and propulsion. For the completeness of the economic appraisal and the provision of a guide to performing non-user benefit analysis for this promising ITS technology, the socioeconomic effects of implementing AVCS Maglev in the USA are evaluated based on the US National Development Model (NDM). 相似文献