The Quiet Revolution in Visual Resource Management: A view from the coast

Abstract

This introductory piece traces the growth of knowledge and activity associated with visual resource management in general. A specific framework of questions regarding methods of coastal zone visual resource management is presented. The state‐of‐the‐art in methodological studies is listed for each question, and the methodological questions are related to the major articles with the special issue of the Coastal Zone Management Journal. Major legal federal statutes, state statutes, and court cases are reviewed in light of visual resource management in the coastal zone. The remaining articles within the special issue that deal with integration of VRM into decision‐making are then arrayed against a management framework. This framework includes regulatory situations for (1) public land management and planning, (2) public projects involving private lands, and (3) public regulation of private projects.     

The meaning of car availability in mode choice decisions

The paper examines various definitions of car availability that have been used in the literature, and compares the results when applied to a common data set. It argues that car availability means different things to different people depending on their licence holding/car owning status. Using in‐depth interview data, the factors determining car allocation and transferability within a household, and subsequently mode choice, are discussed. An attempt is made to draw some general conclusions for research and modelling. This suggests that different approaches are required depending on whether or not there is competition for use of the car within a household. Also that in cases of competition, mode choice is not a two‐stage process depending on car availability and trip characteristics, but a concurrent decision based on both of these factors.     

基于竞争的高速铁路客运需求量预测

从铁路运输企业的角度，以市场竞争为导向，以提高铁路客运市场竞争力和综合经营效益为目标，从客流属性特征出发，对竞争条件下旅客运输需求进行分析，引入匹配因子和分担率的概念，以距离和旅客收入结构为交叉因素对分担率进行预测，构建了适应我国铁路客运需求预测理论体系，并以京广线为例对高速铁路在竞争条件下的客运需求量进行了合理预测．     

网约车进入市场利益方博弈策略及效果分析

运用博弈论方法探讨了网约车作为一种新的出行方式进入市场后，市场已存者(即出租车)与其的策略互动，市场已存者通过调整出行费用，从而采取不同的策略应对潜在进入者(即网约车)是否会进入市场.假定出行者根据时间价值(VOT)函数选择出行方式，求出给定需求情况下的需求均衡，并根据两阶段博弈理论求出各策略均衡下的市场均衡，利用均衡时各出行方式的利润和总社会成本评估各策略的影响.最后给出实例分析，结果显示，虽然网约车的进入会减少出租车的利润，但是社会总成本却降低了.因此，合理发展网约车是经济可行的.     

造船门式起重机电控系统特点

以江南长兴的450t门式起重机为例,分析了其数字化、智能化、网络化和信息化的工作原理。     

完善汽车维修市场迫在眉睫

从汽车维修行业管理的角度出发 ,针对当前汽车维修市场存在的问题 ,提出了加强汽车维修市场管理的几项措施     

贯彻执行《招标投标法》规范招标投标活动的几项措施

从我省公路建设发展的现实和未来出发 ,指出了招投标工作的重要性 ,并简要介绍了 2 0 0 0年黑龙江省高速公路建设局在贯彻执行《招标投标法》规范招标投标活动中采取的具体措施     

随机游走、市场效率与投资策略

回顾了随机游走及有效市场假设理论发展的背景,分别采用数学方法及描述语言给出其定义,在指出市场效率与信息反映速度关系以后,本深入地分析了有效市场假设理论对技术分析、基础分析和消极投资三种策略的指导意义。     

对废旧沥青混合料再生利用的研究

大量的实验比较分析表明，可以通过一定比例的复合再生剂的调和作用，成功地使废旧沥青再生，且再生后沥青性质完全满足重交通道路石油沥青质量标准（GB50092—96）的要求。