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三千里滚滚西江水,源云贵,横亘两广,直达港澳。西江,这条占广西90%的内河运量,流域面积占全区总面积80%的母亲河,是上天赐予八桂人民独一无二的宝贵财富。2008年10月,广西壮族自治区党委、政府立足广西发展大局,通观区域经济发展形势,作出了"打造西江黄金水道,推动区域经济协调发展"的战略决策。2009年8月21日,广西专门成立了广西壮族自治区西江黄金水道建设领导小组办公室(以下简称"西江黄金水道办"),西江黄金水道建设开始向"一盘棋"方向发展,掀起了西江黄金水道建设新高潮。 相似文献
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随着国家西部大开发、与东盟开放合作和广西北部湾经济区发展规划战略的深入实施,广西水运事业迎来了加速发展的新春天——北部湾港万吨级以上泊位达到46个,港口综合通过能力达到1.15亿;内河正在加紧构建“一线三通道”(西江航运干线和南、北、中航运通道)的水路运输网络,《广西西江黄金水道建设规划》通过广西壮族自治区政府批准实施,到2012年西江亿吨黄金水道初步形成。 相似文献
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西江在我国内河中仅次于长江,是西南水运出海大通道的重要组成部分。梧州市地处西江核心区,充分发挥梧州市交通区位优势,建设区域型物流枢纽城市,能够为沿江特别是广西区发展区域经济、促进珠三角区域产业转移、吸引投资,提供良好的物流环境。 相似文献
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为了推动广西西江黄金水道更好地服务于区域经济建设,文章分析了广西西江黄金水道通航建筑物建设运营管理体制现状以及存在的问题,提出了符合广西特色的通航建筑物建设、运营、管理的模式,阐述了通航建筑物运营管理体制改革创新发展的思路。 相似文献
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文章以广西大化电站船闸下游河道整治工程Ⅲ、Ⅳ爆破作业区为例,介绍复杂环境下爆破作业安全施工的优化方案,提出了爆破安全防护相关措施,为类似的爆破作业提供借鉴。 相似文献
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文章针对广西内河助航标现状,提出加大技术创新,对航标进行技改的思路。并对应用现有技术建设广西内河航标自动遥测系统进行探讨,为提高航标维护管理质量提供参考。 相似文献
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On-road vehicles have been considered as one of the major contributors to energy consumption and air pollutant emissions. In order to quantify the corresponding environmental impacts, great efforts have been dedicated to the microscopic and macroscopic modeling for vehicle energy consumption and emissions. However, the mesoscopic modeling research that is focused on estimating trip-based energy consumption and is critical to some ITS applications (e.g., environmentally-friendly navigation), is relatively deficient. This study aims to investigate the effects of different data segregation methods on the mesoscopic modeling for vehicle energy consumption. A variety of novel methods, including the so-called conditional operating mode based method, have been proposed and evaluated using field data. Based on real-world data, statistical analyses have demonstrated the superior performance of enhanced models (i.e., conditional operating mode/VSP based models) in estimating vehicle energy consumption on a trip basis, compared to the other four models (velocity binning, time snipping, distance snipping and VSP based models) tested in this study. 相似文献
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航标维护正常率是考核评定航标维护管理工作的重要技术指标之一。文章分析了广西内河航标失常的特点与原因,探讨了提高航标维护正常率的有效途径,提出采用多手段监控管理模式是提高航道航标管理工作质量的有效途径和科学方法。 相似文献
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《Transportation Research Part C: Emerging Technologies》2010,18(3):351-366
Collision avoidance support systems (CASS) are nowadays one of the main fields of interest in the area of road transportation. Among the different approaches, those systems based on vehicle cooperation to avoid collisions present the most promising perspectives. Works available in the current literature have in common that the performance of such solutions strongly relies on the operation of two on-board subsystems: navigation and communications. However, the performance of these two subsystems is usually underestimated when the whole solution is evaluated. Collision avoidance support applications can be considered among the most critical vehicular services, and this is the reason why this paper focuses on the performance issues of these two subsystems. Main issues regarding navigation and communication performance are discussed along the paper, and a study of the literature in the field is completed with the evaluation of different system prototypes. Communication and navigation tests in real environments yield further conclusions discussed in the paper. 相似文献
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《Transportation Research Part C: Emerging Technologies》2003,11(6):423-438
The purpose of this research was to compare the usage of a traditional paper map and electronic route maps during driving, and to consider the effects of congestion information and map scale sizes on driving performance, workload and subjective feelings. Experiments were conducted in desktop virtual driving environments with a 17-in. color monitor simulating driving environments and a 14-in. color monitor showing different kinds of navigation systems. A total of 20 undergraduate students of National Tsing Hua University were paid to participate in the Experiment I. The criteria for driving performance were trip duration, driving speed and number of navigation errors. Heart rate was measured as an index for workload. The 5-point Likert-type questionnaire was used to reflect the perceived nervousness, fatigue and task difficulty. Results indicated that the performance difference between a paper map and electronic route maps depended on the design characteristics of electronic route maps. Comparisons among four electronic maps revealed two significant main effects of congestion information and scale sizes on trip duration. Besides, it seemed that the availability of congestion information was useful for reducing navigation errors. Neither statistically significant main effects nor interaction was found on subjective feelings and driving speed. Another 18 subjects were used in the Experiment II to determine the optimum map scale size. Finally, the implications of the findings may provide suggestions on designing safer and more efficient in-vehicle navigation systems. 相似文献