成都铁路局“白货”运输市场现状与竞争力提升对策分析

在分析国内及两省一市铁路、公路、水路货运市场现状及发展情况的基础上,对＂白货＂产品运输特点及铁路运输在运价、物流服务、运输能力等方面存在的问题进行分析,提出了深入开展货运组织改革,加强货运设施建设、增强物流服务功能、提高运输质量、优化运价机制、开发优质货运新产品、加强货运市场调查以及与社会物流企业的合作等建议,以进一步增强铁路竞争力,提高＂白货＂运量和市场占有份额。     

运政管理应对运输市场竞争策略初探

文章根据我国道路运输市场的形成和发展实际,从运输市场竞争的正负面影响和利弊角度思考,对运政管理应对越来越激烈的运输市场竞争作初步的探讨,提出相关应对策略和措施。这对新形势下激发大家自觉维护正常的道路运输市场秩序、共同遏制过度竞争造成的负面影响有着重要的意义和促进作用。     

论12海船船员评估规范中三副评估项目的新变化

本文对12海船船员评估规范和09海船船员评估规范中三副适任评估项目进行比较和分析,以加深各教育培训机构、教员和学员对12海船船员评估规范的理解和掌握,同时就12海船船员评估规范三副评估项目的新变化提出具体可行的应对措施。     

轮机专业英语课程改革与实践

笔者从行业对轮机工程技术专业人才的职业能力要求入手,从教学对象特点、课程特色、教学方法和考核评价机制四个方面切入,进行轮机专业英语课程改革探索和总结。     

基于灰色理论的民用汽车运力动员能力评估

在当前军民融合式发展的大趋势下,汽车运力动员作为民用运力动员的一个组成部分,在现代战争中发挥着重要作用。提出一种基于灰色理论的评估方法,通过分析民用汽车运力动员体系的构成要素,构建动员能力评估指标体系,客观评估动员能力,并依据结果提出相应的改进建议。可为加强民用汽车动员能力建设提供一定的参考。     

基于突发事件处置的应急投送能力建设探讨

应急投送在突发事件行动处置中具有先发性、基础性地位。处置突发事件行动对应急投送能力提出更高的要求,但当前应急力量投送建设还存在着诸多的＂短板＂与矛盾,不能完全适应应急处置任务的需要。构建军民融合式的投送力量体系、建立常态化的应急投送指挥机构、加快应急投送装备与事故多发地域交通运输基础设施建设、开展应急投送的训练,对于加强应急投送能力建设具有重要作用。     

灰色理论在舰炮火控系统作战能力评估中的应用

依据某型舰炮火控系统的战术技术指标,论文建立了评估某型舰炮火控系统作战能力的指标体系;运用灰色层次分析法对舰炮火控系统作战能力进行了评估,评估采取定量分析为主,与定性分析相结合。     

A Review of Ex-Post Evidence for Mode Substitution and Induced Demand Following the Introduction of High-Speed Rail

ABSTRACT

To date, relatively little is known about the nature of the demand for high-speed rail (HSR) soon after inauguration of the services, despite close to 50-year experience of HSR operation and 17 166?km of HSR network around the world. This is a real lacuna given the scale of HSR construction around the world, the amount of resources committed to it, the desired accessibility, economic and environmental effects associated with HSR development and the relatively poor track record of forecasting demand for HSR services. Focusing on mode substitution and induced demand effects, this review aims to fill the gap in knowledge about the ex-post demand for HSR services in order to facilitate a learning process for the planning of the future HSR network. Although there is not much evidence on the demand for HSR services and existing evidence is largely influenced by route-specific characteristics, a methodological limitation that must be acknowledged, the evidence presented allows a better characterisation of HSR as a mode of transport. The review shows that the demand for HSR a few years after inauguration is about 10–20% induced demand and the rest is attributed to mode substitution. In terms of mode substitution, in most cases the majority of HSR passengers have used the conventional rail before. Substitution from aircraft, car and coach is generally more modest.     

A behavioral analysis of freight mode choice decisions

This paper develops a behavioral analysis of freight mode choice decisions that could provide a basis for an acceptable analytical tool for policy assessment. The paper specifically examines the way that truck and rail compete for commodity movement in the US. Two binary mode choice models are introduced in which some shipment-specific variables (e.g. distance, weight and value) and mode-specific variables (e.g. haul time and cost) are found to be determinants. The specifications of the non-selected choice are imputed in a machine learning module. Shipping cost is found to be a central factor for rail shipments, while road shipments are found to be more sensitive to haul time. Sensitivity of mode choice decisions is further analyzed under different fuel price fluctuation scenarios. A low level of mode choice sensitivity is found with respect to fuel price, such that even a 50% increase in fuel cost does not cause a significant modal shift between truck and rail.     

航空公司动态价格竞争复杂性与延迟反馈控制

为深入研究航空公司动态价格竞争的复杂性及延迟反馈控制方法的有效性, 综合运用有限理性决策理论与非线性动力学理论,构建航空公司动态价格竞争博弈模 型,分析航空公司复杂的动力学行为,研究针对系统变量、系统参数的两类延迟反馈控制 方法的有效性与差异性.研究结果表明,航空公司价格调整速度对模型的复杂性有显著影 响;选取合适的控制因子,两类延迟反馈控制方法都能对陷入混沌的动态价格竞争模型 实施有效地混沌控制;两类延迟反馈控制方法在控制因子取值范围、收敛速度等方面存 有显著差异;控制因子取值对系统的收敛速度呈规律性影响趋势.