共查询到20条相似文献,搜索用时 46 毫秒
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拥有一百多年历史的斯堪尼亚集团自1897年推出瑞典的第一部卡车以来,不断研发新的产品.引领卡车技术的更新换代,并且凭借技术领先的模块化组合系统居于重型卡车行业前列.成为全球第四大重卡供应商。斯堪尼亚在欧洲、南美洲开设了生产基地,产品销往世界100多个国家和地区.拥有世界重卡市场12%的份额。 相似文献
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黄洪坤 《中国高新技术企业评价》2011,(27):23-24
汽车运输企业的安全生产工作直接关系到企业经济效益、人民生命财产与社会稳定问题。正确处理好安全与生产、安全与效益的关系,是汽车运输企业当前所面临的一大课题。在现代企业运行机制下,依靠科学技术,构建汽车运输企业安全管理体系,全面提升驾驶员整体素质,是提高现代汽车运输企业安全生产与管理有效性的最佳对策。 相似文献
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在工业生产过程中,许多原材料的运进、成品的输出,以及半成品在车间与车间、工序与工序之间进行装卸、运输、堆垛等都需要叉车作业。叉车运输是厂内运输的主要形式之一。加强厂内叉车装卸运输的安全管理,建立健全安全操作规范,以及对叉车驾驶员的安全技术培训和专业知识教育,对于减少企业内叉车生产事故,提高装卸运输效率,都有着十分重要的意义。1叉车安全使用守则1.1驾驶人员必须经过专门培训,熟悉并掌握叉车结构、性能,并熟练掌握装卸作业技能,经有关部门考核合格,才能独立驾驶叉车作业,不准无证人员上车操作。1.2叉车… 相似文献
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应用传感和网络技术实现危化品运输的智能与安全 总被引:2,自引:0,他引:2
危险化学品运输的安全一直是困扰业界和政府的大问题。随着我国工业化进程的加快,能源和化工原料的运输量急剧增加,其运输的安全形势非常严峻,各种恶性事故频频发生,造成了巨大的经济损失和恶劣的社会影响。 相似文献
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Franois Louveaux 《Regional Science and Urban Economics》1982,12(4):529-545
In this paper, we consider the problem of locating one firm within a transportation network. For this problem, the main known result, called the Hakimi theorem, states that an optimal location of the firm is either a market or a node of the network. Our purpose is to extend this result in two directions. First, when several transportation modes exist, we show that the junction points between different modes can also be optimal locations. Second, we study the role of the fixed transportation costs. We prove that markets are local optimal locations when such costs exist, and that a market is the only optimal solution under specific assumptions about the size of the fixed costs. Simulation is used to illustrate the relevance of the approach. 相似文献
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Arthur C. Gruen 《Journal of urban economics》1980,8(2):264-271
This paper examines the relationship between traffic congestion and travel time. A model is developed where both travel time and the number of peak-hour trips are simultaneously determined. The model is estimated by two-stage least squares using traffic data from the Boston metropolitan area. The estimates are used to generate implications for transportation policy. The paper suggests that commuters are substantially more responsive to changes in travel time than to changes in price. 相似文献
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《Journal of urban economics》2008,63(3):405-423
This paper presents a version of the monocentric city model that incorporates heterogeneous commuting speeds by introducing radial commuting highways. This model implies that metropolitan area population spreads out along new highways, which are positively valued by residents. Simulations of conservative specifications of the model imply that each additional highway ray causes about a 10 percent decline in central city population. Given observed central population declines and urban highway construction between 1950 and 1990, this model implies that highways can account for an important part of urban population decentralization. 相似文献
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近年来道路运输取得了较大的发展,道路运输市场的管理也进一步得到了规范.但是在市场中仍存在着很多问题,其中固然有经营主体方的原因,但由于法规不尽完善、监督手段不够健全、管理措施不到位,运输市场中监督与管理未能取得良好的效果. 相似文献
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Suburbanization and transportation in the monocentric model 总被引:2,自引:0,他引:2
This paper presents a version of the monocentric city model that incorporates heterogeneous commuting speeds by introducing radial commuting highways. This model implies that metropolitan area population spreads out along new highways, which are positively valued by residents. Simulations of conservative specifications of the model imply that each additional highway ray causes about a 10 percent decline in central city population. Given observed central population declines and urban highway construction between 1950 and 1990, this model implies that highways can account for an important part of urban population decentralization. 相似文献