铁水联运产品设计研究

介绍了我国铁水联运的开展背景和产品现状,提出了面向市场的产品概念开发、面向运输组织的运输计划编制和面向运输生产的作业计划产品设计流程;最后以大连港为例,分析对其铁水联运产品进行了探讨。定的铁水联运产品设计方法,以及基于运输需求和铁路能力的大连港的铁水联运需求和铁路能力等条件,并基于大连港现状制了     

某电厂工程建设用地地质灾害危险性评估

以某电厂（2×600 MW）为例,在收集各种资料的基础上,通过调查研究和定性地对建设用地地质灾害危险性进行评估。评估结果:工程所选两个厂址均适宜该电厂工程的建设,应注意的是,附属工程场地的崩塌、滑坡以及工程建设中形成的边坡,必须采取加固措施,确保安全。     

杭州某高边坡危岩体影响范围分析

以杭州市“龙山石壁”风貌保护治理工程高边坡为实例,对危岩体的影响范围进行了比较系统的分析研究.通过现场滚石试验,对危岩体影响范围进行了划定,运用Rocfall软件对落石运动轨迹进行了分析,评估其崩落后的滚动距离、危岩体坠落以后可能的弹跳高度,最终得出危岩体的影响范围.     

北京市典型货车运输链分析研究

通过北京市开展多年的货运车辆抽样调查,总结了北京市搬家运输、混凝土运输、商品配送、油品运输、长途运输等典型货车运输链,分析运输规律,为城市中心区货运需求调查和货运运力配备需求测算奠定了基础.提出了货车运输链描述指标,并且指出要进一步加强信息化技术手段的应用,积极研究利用新技术、新手段,加强货车运输链深入总结归纳,进一步提高相关信息及管理决策的准确性、科学性,充分发挥决策支持功能.     

极震区公路高边坡崩塌危岩体特征及防治措施分析

中国西部地区等级较高的地震,常常发生在岩体强度高的深切割地貌区,因而震后次生灾害的危害预测和防治显得尤为重要。以G213映秀至汶川公路抢险保通的工程实践为例,总结了极震区崩塌灾害对公路造成的危害,结合震区地质环境,对崩塌物源的危岩体的发育和崩塌体运动规律进行了分析,并探讨了危岩体防治措施。供类似工程参考。     

高速公路服务区危化品车辆停放的适应性评价

在广泛调研广东省高速公路服务区危化品车辆的停车配套及服务区安全管理要求的基础上,设计、筛选服务区危化品车辆停放的适应性评价指标,确定各指标的赋值标准与权重,建立服务区危化品车辆停放的适应性评价体系。选取梁金山、鲘门、横石水、忠信和蚬岗5个典型服务区作试点,运用该评价方法判断各服务区危化品车辆停放的适应程度,并与实际调研情况比对,说明该评价方法的有效性。评价结果为高速公路危化品车辆的停靠规划提供理论依据。     

某六缸机载货车转向系统优化设计

本文主要对某六缸机货汽车的转向系统进行了优化设计。提出了合理性优化设计方案,通过对转向拉杆与悬架导向机构的运动干涉量进行调整,减小由于转向拉杆机构与悬架导向机构运动不协调所造成的跳动干涉;通过转向器的合理选择,优化拉杆折弯形状,提高整车可靠性的同时降低成本。     

内河水上危险货物集装箱运输监测系统研究

水上危险货物集装箱监控系统应具有水上危险货物集装箱状态监控信息采集、预报警、信息远程传输、远程监控与应急决策支持等功能,其框架应为4层架构,即信息采集层、现场监控层、信息传输层、远程监控层。文中分析了构建内河水上危险货物集装箱运输监控系统的关键技术,设计了信息采集与传输层的硬件电路,提出了开发远程应急管理系统的支撑技术与决策模型方法。     

Understanding the impact of e-commerce on last-mile light goods vehicle activity in urban areas: The case of London

Growth in e-commerce has led to increasing use of light goods vehicles for parcel deliveries in urban areas. This paper provides an insight into the reasons behind this growth and the resulting effort required to meet the exacting delivery services offered by e-retailers which often lead to poor vehicle utilisation in the last-mile operation, as well as the duplication of delivery services in urban centres as competitors vie for business. A case study investigating current parcel delivery operations in central London identified the scale of the challenge facing the last-mile parcel delivery driver, highlighting the importance of walking which can account for 62% of the total vehicle round time and 40% of the total round distance in the operations studied. The characteristics of these operations are in direct conflict with the urban infrastructure which is being increasingly redesigned in favour of walking, cycling and public transport, reducing the kerbside accessibility for last-mile operations. The paper highlights other pressures on last-mile operators associated with managing seasonal peaks in demand; reduced lead times between customers placing orders and deliveries being made; meeting delivery time windows; first-time delivery failure rates and the need to manage high levels of product returns. It concludes by describing a range of initiatives that retailers and parcel carriers, sometimes in conjunction with city authorities, can implement to reduce the costs associated with last-mile delivery, without negatively impacting on customer service levels.     

Methodological aspects for modeling the environmental risk of transporting hazardous materials by road

The main objective of this paper is to establish the procedures necessary to the development of a model for the environmental risk assessment of accidents involving Transporting Hazardous Materials by Road (THMR). Quantifying the environmental risk is useful in identifying areas with a high risk of accidents, which can be later discarded as main routes; orienting efficient emergency response operations; and assessing policies aimed at reducing these risks. Taking this into consideration, this study endeavors to identify the methodological aspects make possible the assessment of the impacts that arise from accidents involving the transportation of hazardous materials by road and to implement such methodological aspects in a Geographic Information System (GIS).