共查询到20条相似文献,搜索用时 906 毫秒
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介绍了ABS(防抱死制动系统)、ASR(驱动防滑系统)、ESP(电控行驶平稳系统)的功能和性能,分析了动力性、制动性与汽车行驶性能的关系. 相似文献
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结合山区高速公路ETC门架智能防雷监测系统在南平高速公路应用时的日常运维经验,介绍了ETC龙门架IOT智慧防雷监测系统的系统架构、系统功能及应用管理要点,通过与传统防雷技术对比分析,认为智能防雷监测系统在减小ETC门架机电设备受雷击的不利影响,提高机电设备运维效率,降低运维成本等方面具有明显优势. 相似文献
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通过对国内外电子不停车收费系统(ETC)关键技术的介绍,说明了ETC在高速公路上的应用价值,同时对不停车收费在山东省高速公路的实施进行了技术上的选择和探讨. 相似文献
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<正>2013年12月31日,经过近一年的系统改造、工程建设和联合测试,京津冀晋鲁电子不停车收费(ETC)系统正式联网运行,这标志着全国ETC联网迈出了第一步。力争‘十二五"末实现全国联网2010年,交通运输部组织开展的京津冀和长三角区域高速公路ETC联网示范工程顺利完成,成功突破地域限制,在区域内实现了一卡通行。从此,电子不停车收费系统,开始了信息化 相似文献
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本文主要针对内昆铁路长大坡道线路铺(轨)架(桥)施工技术重大难题,重点对本系统工程部涉及的铺架设备能力、运输牵引动力、安全技术保障措施等关键技术的研发原则及要点进行了介绍,可供类似工程借鉴。 相似文献
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《Transportation Research Part C: Emerging Technologies》2007,15(5):300-311
In order to reduce the number of vehicles stuck in congestion, especially for stop-and-go traffic at toll plazas, the establishment of electronic toll collection (ETC) systems has been a hot issue and dominant trend in many countries. Taiwan has joined the crowd, adding an ETC system to its toll roads in early 2006. However, despite the potential benefits for motorists, the utilization rate has been lower than expected during the introductory stage. The objective of this study is to advance our understanding on the critical antecedents of motorists’ intention of ETC service adoption by integrating both technology acceptance model (TAM) and theory of planned behavior (TPB) perspectives. Through empirical data collection and analysis from highway motorists who had not installed on-board units (OBU) for ETC service in Taiwan, we found that system attributes, perceived usefulness and perceived ease of use, indeed, positively engender motorists’ attitudes towards ETC service adoption. Moreover, results also reveal that attitude, subjective norm and perceived behavioral control positively influence the intention of ETC system adoption. Implications for practitioners and researchers, and suggestions for future research are also addressed in this study. 相似文献
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《Transportation Research Part A: Policy and Practice》2003,37(4):293-314
This paper examines the deployment of electronic toll collection (ETC) and develops a model to maximize social welfare associated with a toll plaza. A payment choice model estimates the share of traffic using ETC as a function of delay, price, and a fixed cost of acquiring the in-vehicle transponder. Delay in turn depends on the relative number of ETC and manual collection lanes. Price depends on the discount given to users of the ETC lanes. The fixed cost of acquiring the transponder (not simply a monetary cost, but also the effort involved in signing up for the program) is a key factor in the model. Once a traveler acquires the transponder, the cost of choosing ETC in the future declines significantly. Welfare depends on the market share of ETC, and includes delay and gasoline consumption, toll collection costs, and social costs such as air pollution. This work examines the best combination of ETC lanes and toll discount to maximize welfare. Too many ETC lanes cause excessive delay to non-equipped users. Too high a discount costs the highway agency revenue needed to operate the facility. The model is applied to California’s Carquinez Bridge, and recommendations are made concerning the number of dedicated ETC lanes and the appropriate ETC discount. 相似文献
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《Transportation Research Part C: Emerging Technologies》2001,9(2):123-134
This paper summarises privacy issues in the context of electronic toll collection (ETC). Developments in ETC are noted, and the ways in which privacy is being addressed are discussed. The development of privacy codes of practice by toll road operators is discussed, mentioning in particular recent development in Australia involving the alignment of such codes with Standards Australia (SA) draft guidelines and the privacy principles developed by the Australian Federal Privacy Commissioner are noted. 相似文献
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文章以广西沿海高速铁路(钦州北~北海段)工程为例,探讨高性能混凝土的配合比设计原则,并通过试验测试验证了该配合比混凝土的工作性、力学指标以及耐久性能指标均满足广西沿海高速铁路工程施工要求,为高性能混凝土的配合比设计提供参考. 相似文献
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随着液化天然气(LNG)项目的不断发展,新型的管道保冷材料被广泛应用。文中结合某LNG项目管道柔性保冷材料的实际施工情况,对柔性保冷材料的施工工艺从环境要求、保冷结构、施工顺序等几个方面进行研究,总结出了最适合的保冷施工工艺,为其他LNG项目管道保冷材料的选型提供参考,为管道保冷施工提供参考。 相似文献
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文章结合厦门港海沧航道扩建工程实践,介绍了利用全站仪与GPS-RTK(1+2)技术进行炸礁作业施工放样的基本原理,阐述了全站仪与GPS-RTK放样作业的具体步骤及效果,并通过对比分析,验证了GPS-RTK(1+2)技术的优越性。 相似文献
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文章以道路材料实验室为依托,通过中海油AH-70#基质沥青、布敦岩沥青(BRA)、SBS改性沥青混合料的对比试验,研究以干法掺入不同BRA掺量的改性沥青混合料的综合路用性能。结果表明:布敦岩沥青混合料的高温稳定性、水稳定性和低温性能明显优于基质沥青混合料;当BRA掺量为3%时,混合料各项指标均已接近或达到了SBS改性沥青沥青混合料的性能,而当掺量从3%增加到4%时,混合料的高温性能、水稳性能均有所降低,因此,工程应用中的布敦岩沥青掺量宜在3%附近。 相似文献
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