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记者:现在黑龙江全省道路运输业存在着哪些难题?我们运管部门做了哪些工作?
梁旭:现在全省客运面临油价高企的难题,农村客运发展的难题,以及城市客运向周边辐射、客运业面临利益重新分配的难题,城市公交和出租之间的矛盾难题,需要不断的磨合,逐步完善。 相似文献
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“以树养路”举措在百色农村公路的实践 总被引:1,自引:0,他引:1
经费短缺一直是农村公路养护中的“瓶颈”难题,文章介绍百色农村公路通过建立以树养路的管养模式,利用公路边坡有效的坡面面积,种植速生桉等经济林木,破解农村公路养护经费短缺的难题,实现了“有路必养”的目标。 相似文献
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超长度索道用钢丝绳是钢丝绳生产企业的一个难题。宁夏恒力钢丝绳股分有限公司设计制造的K-8/1650成绳机及相关生产技术的应用,解决了超长度索道用钢丝绳的国产化难题,提高了索道用钢丝绳的使用寿命。 相似文献
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文章针对广西在建高速公路行业管理遇到的难题,分析存在难题的原因,从搭建监管工作平台、明确监管工作任务、建立行业监管体系、健全行业监管依据、创造良好的工作环境、推行工程项目管理信息系统应用、建立行业管理信息平台和制定价格变化联系机制等方面提出了解决难题的相关对策。 相似文献
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《综合运输》2020,(1)
智能系统的广泛使用,带来了移动支付的普及。公交支付在传统IC卡和现金支付的基础上,加入了云闪付和二维码支付。为探究移动支付对公交支付效率的影响,基于杭州市公交发展现状,制定了公交支付情况的调查方案。通过对所选10、93、97公交线路的早、晚高峰和平峰的三天实地调查,采集视频数据并使用SPSS进行定量统计分析,发现公交乘客刷卡占62%、二维码占27%、云闪付占6%、现金占5%。当乘客提前做好准备时,刷卡支付时间为1.29 s,低于云闪付的1.42 s和二维码的1.65 s,而未准备好时用时分别为6.74 s、10.94 s、8.54 s。通过相关性和多元线性回归分析得出"提前拿卡"、"上车掏卡"、"提前开二维码"和"上车开二维码"四种支付方式对公交停留时间延长的影响最大。 相似文献
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西气东输二线长输管道定向钻穿越府河工程,采用了大口径、长距离、入土端含卵砂石条件下的水平定向钻技术。文中介绍输气管道在府河复杂地质条件下定向钻穿越的设计方法与施工方案,论述定向钻穿越设计、处理卵砂层方法、导向孔钻进、扩孔、回拖、泥浆配置等技术,总结工程设计及施工经验,为大口径长输管道定向钻穿越技术在复杂地层中的应用和发展提供新的实践资料。 相似文献
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盾构机姿态参数的测量及计算方法研究 总被引:7,自引:0,他引:7
根据三点决定一个平面的原理,通过在盾构机中体上布置测量控制点,对其三维坐标进行测量;根据空间解析几何原理,推导出盾构机刀盘中心三维坐标以及俯仰角、横摆角、扭转角的计算方法.文章利用计算机的伪随机函数对盾构机姿态参数的测量精度进行了模拟评价,探讨了提高测量精度的方法.结果表明,盾构姿态参数的测量误差均服从正态分析;采用精度为3 mm的激光经纬仪测量控制点坐标,得到的盾构姿态参数的误差范围比规范要求小得多. 相似文献
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Social Impacts of Transport: Literature Review and the State of the Practice of Transport Appraisal in the Netherlands and the United Kingdom 总被引:1,自引:0,他引:1
Abstract Transport appraisals in European countries increasingly address three dimensions of sustainability—economic, ecological and social. However, social impacts of transport have been underexposed in (ex‐ante) transport project appraisal, at least in the Netherlands. Firstly, this article presents a theoretical framework describing the relationships between determinants of social impacts of transport; it also provides a definition and categorization of those impacts. Secondly, the article reviews the state of the practice of national transport project appraisal in the Netherlands and the United Kingdom. The article shows that social impacts of transport investments can take on many forms and their levels of importance may vary widely, in project appraisal. The UK transport appraisal guidance includes a spectrum of social impacts through quantitative and qualitative assessments that is broader than the Dutch appraisal guidance. However, it does not cover the full range as identified in the literature. This holds, in particular, for the temporary impacts of transport investments, health impacts, social cohesion, the distribution and accumulation of impacts across population groups and social justice. All in all, it can be concluded that there is a long way to go before social impacts of transport projects are completely included in appraisals, in a way that allows us to compare them to economic and ecological effects. 相似文献
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There is a world-wide consensus that climate change policy has to be intensified to achieve reduction goals set for 2020 and 2050. But it is heavily debated which contribution should be expected from the transport sector. It is often argued that in the transportation sector CO2 marginal mitigation costs are higher such that – together with high growth of transport activities – the reduction targets for this sector should be relaxed. Green transport policy is contrasting this view and underlines that considerable reductions of climate gases in the transport sector are possible without risking economic prosperity. The aviation industry is in the focus of this discussion and first attempts are being made in the European Union to integrate aviation in an emission trading system. It will be shown that the impact of this policy will be very low in the medium term and that additional measures are necessary to create enough incentives for the aviation industry to exploit their reduction potential. 相似文献
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文章以目前地铁建设中常用的土压平衡盾构为背景,介绍了盾构故障诊断及保养系统的总体结构方案、知识库知识的获取建立、推理机的设计及系统的主要工作流程等,旨在通过系统的研制与开发,提高盾构掘进机的施工效率. 相似文献
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Robert E. Paaswell 《Transportation》1973,2(4):351-371
An examination of current population statistics shows that in the U.S. more than half of the population is without immediate access to a car, and in the U.K. more than three-fifths of the population is without access to a car. This phenomenon has been accentuated by national investment in both countries in major highway programs. The term carless refers to more than just households that own no cars. It extends, in households with cars to those without licenses (old and young), the handicapped, and even the licensed drivers who have no access to the family car when it is in use elsewhere (e.g. at work). The most severely effected are those in urban areas and especially the urban poor. Transportation expenses are limited for the poor when other family expenditures (food, shelter) take a high priority. Once the work trip has been satisfied, money for other trips, for the poor, is not always available. One solution to cost-free travel is pedestrianism (walking), but this too is difficult in urban areas where the pedestrian has been overlooked in favor of the car. Solutions to problems of the carless include dial-a-ride, better public transit, and better design of urban form. 相似文献
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道路交通事故分析及预防对策 总被引:1,自引:0,他引:1
道路交通事故的预防是一个系统工程,通过对全国和新疆道路交通安全现状与道路交通事故原因的对比分析,分别从影响道路交通安全的人、车、路及环境四个方面提出了降低和预防道路交通事故的发生,确保行车安全的相应措施和建议。 相似文献