Group-based geographic information systems for transportation improvement site selection

Transportation improvement site selection exemplifies transportation decision making that is collaborative in nature and geographically based. Such decision-making is part of a broad societal trend toward shared and participatory discussions about public investment. Perspectives from three different transportation decision contexts in the Puget Sound Region of Washington State, a regional council, a county government and a public–private Coalition group, are combined with a literature review to develop a decision task model that summarizes the need for information technology support during transportation improvement site selection. The task model guides the development of a decision support system requirement specification that outlines integrated information capabilities provided by geographic information system (GIS) and group support system (GSS) technologies. Together, GIS and GSS capabilities contribute to evolving group-based GIS. The kinds of capabilities a group-based GIS could offer in addressing the needs are identified. A report on the use of a prototype, group-based GIS called Spatial Group Choice highlights the possibilities in an inter-organizational coalition decision context. The conclusions discuss needs for future technology developments and social–behavioral science studies on these developments.     

高速公路路线方案的综合评价

确定各评价指标的权重,通过引入灰色关联度,建立了基于灰色加权关联度的高速公路路线方案综合评价方法,并利用该方法对新疆G045线新疆赛里木湖至果子沟口段公路路线改建的4个预选方案进行了评价,构造理想方案。结果表明,基于灰色加权关联度的公路路线方案综合评价方法计算简单,决策科学,具有较好的应用前景。     

商务口译应变能力的探索与实践

商务口译的特点表明灵活的应变能力能有效处理口译现场的诸多变数。应变能力的培养不是单一的技能训练,涉及多种能力和素质。本文从语言、认知、交际、心理、生理等方面,探讨了多种商务口译困境中的应对策略,提出以实践为主,多种技能配合的训练手段。     

产业链视角下充电基础设施商业模式研究

充电基础设施市场不断扩张,使原有商业模式无法适用,企业想要获得市场竞争力,需对商业模式进行创新发展.本文通过梳理充电基础设施产业链及产业链中各利益相关者之间的关系,分析充电基础设施以各利益相关者为主导的运营模式,由此设计集"车-桩-网-源"为一体的充电基础设施建设开放式服务平台的商业模式,该商业模式从B2C自主、B2C...     

美国州、县/市交通影响分析导则和要求

这里选编了美国加州交通部,田纳西州Knoxg和加州American Canyon市颁布执行的交通影响分析导则和要求。内容涉及必须进行交通影一向分析的新增出行量限阈．交通影响分析的范围、技术方法、分析方案和主要内容、数据收集和假设备件,评估交通影响显著程度的技术标准以及消减交通影响的措施及其责任分担/应当指出,交通影响分析是对当地社区和项目开发者均具积极意义的双赢举措,其作用不仅体现在指导城市用地的合理开发和维护城市交通系统的正常秩序,也体现在保障用地项目建成后的健康经营和有效运作．     

A constraint programming model with time uncertainty for cooperative flight departures

The lack of a proper integration of strategic Air Traffic Management decision support tools with tactical Air Traffic Control interventions usually generates a negative impact on the Reference Business Trajectory adherence, and in consequence affects the potential of the Trajectory-Based Operations framework. In this paper, a new mechanism relaying on Reference Business Trajectories as a source of data to reduce the amount of Air Traffic Controller interventions at the tactical level while preserving Air Traffic Flow Management planned operations is presented. Artificial Intelligence can enable Constraint Programming as it is a powerful paradigm for solving complex, combinatorial search problems. The proposed methodology takes advantage of Constraint Programming and fosters adherence of Airspace User’s trajectory preferences by identifying tight interdependencies between trajectories and introducing a new mechanism to improve the aircraft separation at concurrence events considering time uncertainty. The underlying philosophy is to capitalize present degrees of freedom between layered Air Traffic Management planning tools, when sequencing departures at the airports by considering the benefits of small time stamp changes in the assigned Calculated Take-Off Time departures and to enhance Trajectory-Based Operations concepts.     

高速公路入口匝道的模糊逻辑控制及辅助方案设计

为保证高速公路主线安全、畅通与舒适运行,减少对相连道路的影响,构造了匝道逻辑模糊控制器,提出了三种入口匝道辅助设计方案。结合工程实际,选择了上游车流密度、下游车流密度和入口处等待车辆的总长度作为模糊控制器的输入量,入口匝道的调节率为输出量。计算结果表明,随着入口匝道车辆数量的增加,高速公路主线下游的车速将明显下降,根据主线上、下游车流密度及匝道车辆的数量变化,计算出不同的匝道调节率,通过对高速公路入口匝道的调节率进行实时调节,可控制匝道上车辆的进入,入口匝道辅助方案的实施可缓解与高速公路相连道路的拥堵,对改善高速公路运行安全和效率具有重要的作用。     

城轨交通工程项目的信息集成管理

对天津开发区新交通洞庭路试验线工程的项目信息管理进行概括总结.分析进行信息集成管理的必要性,建立集成化项目管理信息系统(IPMIS)的框架模型,并对该系统在新交通工程中的应用进行实证研究.     

高职院校商务英语阅读课程改革刍议

本文从师资与机制改革、教材与内容改革、教学方法与手段改革三方面,就高职院校“商务英语阅读”课程建设中存在的“3W”问题进行了分析,并就课程的改革方向进行探讨。     

高职图书馆创新服务工作新思考

高职教育的目标是为社会培育具有高等专业职业技能的实用型人才,因其读者有独特的定位和鲜明特色,所以在服务内容上就必须要有新思路新举措。