梧州至广州铁路分流替代及建设方案研究

梧广铁路是川渝云贵大部分地区及桂中地区与粤港澳大湾区货运交流的主通道，也是川渝云贵大部分地区及桂中地区与粤港澳大湾区客运交流的区域性便捷普速客运通道，功能定位、分流替代方案、建设方案与主要技术标准相互耦合，需进行统筹研究。结合路网规划，在研究年度路网分工和运量预测的基础上，分析得出利用南广铁路、“梧州—岑溪—罗定—春湾—永基—广州”铁路通道分流不可行；进而结合运量特点以及是否利用南广铁路，从工程投资、运输组织、运输质量及能力适应性等方面综合比选一次新建双线客货共线铁路和近单远双客货共线铁路两大建设方案；最终推荐近远期工程投资省、运输组织灵活、运输质量高、能力适应性优的一次新建双线客货共线铁路方案。研究思路和方法可为类似项目提供参考和借鉴。     

新建洛湛铁路永州-玉林段技术站布局研究

从洛湛铁路通道的运输组织、西南华南路网发展规划的角度,根据近远结合、统筹规划的原则,深入研究了新建洛湛铁路永州—玉林(茂名)段技术站布局,通过技术经济分析,提出在梧州设技术站更为有利的结论。     

沪杭铁路通道空间布局方法研究

随着我国区域路网特别是高速铁路路网的快速发展,长三角城市群、粤港澳大湾区等区域内重要城市间高速铁路通道内存在多通路格局。为探究研究年度沪杭铁路通道形成的多通路格局,采用多维度综合分析,从沪杭铁路通道现状及存在问题入手,结合区域路网规划、国土空间格局及区域发展战略,与沪宁、广深等类似通道规划布局进行对比分析,充分考虑通道运输需求及能力适应性,提出沪杭铁路通道空间布局设想。初步构想沪杭铁路通道空间布局分为北(沪湖)发展廊道布局沪苏湖—湖杭铁路,中(沪杭)发展廊道布局沪杭高速铁路、沪昆铁路及沪杭城际铁路,南(沿湾)发展廊道布局沪乍杭铁路及沪乍杭货线,并对沪杭铁路通道内各线相互关系、合理分工及建设时机提出初步设想。     

基于通道合理分工的铁路客运需求协同预测探讨

以大能力铁路客运通道为单位,协同预测相关线路客运指标,可以提升铁路资源利用效率和路网整体效益。以兰州至合作、西宁至成都为例,结合线路吸引区域内人口分布及客货运特征,比较相关线路旅客运输径路,确定项目在西北至西南区际通道中的合理分工,考虑各自优势范围协同预测客运需求,为项目主要技术标准、建设时序及方案的研究提供决策支撑。基于通道合理分工的铁路客运需求协同预测以市场驱动为基础,由"线"及"面"研究通道分工及客运需求,对区域乃至全国路网合理高效运营具有一定意义。     

全力打造大能力运输通道 实现区域运输量大幅增长

在分析沈阳铁路局管内运输供求关系的基础上,找准运能扩充突破点,本着"重点突破与整体提升并重、技改扩能与运输组织并举"的思路,着力打造锦齐、通霍等大能力干线通道和沿海港口集疏运通道,不断促进区域路网功能完善和整体运能提升,实现了区域运输的持续稳步增长。     

兰州铁路枢纽总图方案研究

合理确定兰州铁路枢纽布局有助于完善西北地区铁路网络,促进兰州—西宁城市群发展,提升欧亚大陆桥互联互通能力,发挥兰州地区的桥头堡作用。阐述兰州铁路枢纽现状,指出枢纽内客运站分工及货运设施功能存在问题,提出枢纽发展规划;研究提出兰州铁路枢纽总图方案,包括干支线、疏解线及联络线工程方案与总图方案设计。研究结果表明,兰州将形成衔接11条铁路干线,南客北货的大型环状枢纽格局,更好地支撑西北地区核心路网运输。     

陕北煤炭铁路运输持续增量的区域路网能力优化研究

陕北铁路既处于煤炭资源的富集区，也位于蒙煤南运、疆煤东运的必经之路，区域煤炭运输需求持续旺盛。在阐述区域及周边煤炭产量、外运量、就地转化量发展趋势的基础上，分析区域及周边路网现状及主要通道能力利用情况，针对区域路网存在外运能力不足、通道互联互通不畅、微循环运转不良等问题和短板，以满足区域煤炭外运和就地转化运输需求以及为周边运输提供通道为目标，以“联网、补网、强链”为重点，提出提升既有通道能力、加强通道互联互通、畅通区域微循环等具体建议，优化区域路网结构，打造通道、外运、微循环三位一体的现代化路网体系，推动区域铁路高质量发展，助力能源经济转型升级，进而保障国家能源安全。     

基于市场竞争力变化分析的车流径路调整对货运需求影响机理研究

为研究车流径路对铁路货物运输需求的影响机理，提升铁路运输市场竞争力，文章首先分析了车流径路调整对铁路运输组织的影响，梳理影响货主决策的关键因素。设计建立Logit模型，定义效用值为运输环节完成后货物的剩余价值，实现运输效用的货币化展示。模型分析了车流径路调整对不同货物品类铁路运输分担率的影响及对区域路网的影响。最终通过选取中国铁路唐山北站—丰润南站车流径路调整的案例，证明了模型的有效性。     

敦煌至红柳河铁路建设方案的研究

敦煌至红柳河铁路沿线地区综合交通运输体系缺乏畅通的大能力交通运输设施,已经成为制约沿线矿产资源开发的影响因素。从利用既有铁路分流和利用其他运输方式方面分析敦煌—红柳河铁路建设的替代方案,不具备替代性。在此基础上,从促进沿线矿产资源开发、带动敦煌市经济发展、发挥铁路运输节能环保优势、拓展区域路网辐射范围、实现与既有铁路共线运行等方面,提出敦煌—红柳河铁路建设将对满足沿线矿产资源开发和大宗物资运输提供重要保障。     

道路运输企业推行全面质量管理新探

一、行业背景和发展要求 随着铁路路网的逐步完善和动车组的大量开行,铁路客运产品日益丰富,其竞争力越来越强,对道路中长途客运的压力也越来越大;出租车、"黑车"、私家车等对道路短途客运同样带来了不小的冲击.近年来,道路运输行业内兼并收购浪潮风起云涌,企业间的竞争日益加剧,在新的大交通格局中,铁路、公路、航空等运输方式将重新定位和分工.     

总结教训，从严管理 加强设备 保证安全

安全工作必须从基础抓起，抓住主要矛盾，还要强化安全规范管理，构建有效的安全质量保证体系；坚持抓小防大，从严管理；此外还要在设备投入上下功夫，不断提高设备质量。     

Tourism,changing architectural styles,and the production of place in Itacaré, Bahia,Brazil

This article examines changing architecture in Itacaré, Brazil, as it transitions from a fishing village to an international tourist destination. Tourism, as an assemblage of practices and perspectives, recreates places in specific ways that structure social and environmental relationships. Through an examination of historical architectural styles, tourist architecture, and popular architecture in Itacaré, this article analyses the ways a tourist economy has physically and socially rebuilt the city. Socially, the changing architecture marks and creates differences between class, racial, and regional identities while also providing an idiom through which public conversations about these changing economic systems and demographics are articulated. At the same time, the expansion of the city has led to racial-, regional-, and class-based segregation. Environmentally, tourist architecture creates new relationships to nature through re-imagining Itacaré’s position in relation to other rural and urban places and a new emphasis on the aesthetic value of nature.     

Reviewing the DATAS of aviation research data: Diversity,availability, tractability,applicability, and sources

The field of aviation research is entering the era of big data. While data-driven advancements in aviation have clearly brought about applicable models and results with immediate implications, we argue that the influx of aviation data should be better characterized and documented to enable more efficient and standardized usage. To this end, we examine 200 well-cited research articles from sub-disciplines ranging from revenue management to air traffic control published on or after 2010 in order to analyze the diversity, availability, tractability, applicability, and sources (DATAS) of data utilized in aviation research. We find high levels of data diversity within aviation research, with 16 data categories ranging from air traffic flow management-type data to data from distributed sensors in line with the Internet-of-Things (IoT) paradigm. We identified a dominance of proprietary, non-public data in aviation research, with 68% of the 200 research articles utilizing solely proprietary data in deriving their results, and a further 8% utilizing a mixture of proprietary and publicly available data. The pervasiveness of proprietary data has implications on reproducibility and extending research results. We also highlight the increasing tractability of the data by surveying the computational power required to process the data sets, and present vignettes of applications and results that stem from these data-driven studies. Finally, we propose several recommendations regarding standardizing data source nomenclature as well as increasing the availability of and usage of publicly available data.     

Reputation,search cost,and airfares

As cost of search for consumers decreases with the spread of the internet; researchers question whether this trend will lead to lower price or higher product differentiation. This paper examines a sample of offered fares to see if an airline choosing not to distribute its tickets via a channel where competitors' offers are directly observable may attempt taking advantage of potential customers. We find this to be the case. Our study suggests that the US airline industry appears to be evolving toward more product differentiation in the internet age.     

Travel,roads, risks and volunteers

International volunteers often travel to destinations (low- and middle-income countries) that carry a greater chance of being involved in a road-related injury and a possible fatality. Within this cultural exchange, tourists move from safe roads and cars to those that are potentially unsafe. Is this all part of the adventure of volunteering or should the tourist industry take some responsibility? This paper highlights the intersection between tourism and road injury and fatality risks (as pedestrians or in vehicles) with special attention to the longer term volunteer traveller. Social science theory underpins some of the discussions around risk and travel. A brief consideration of the international road traffic death and injury crisis and the emergence of the recognition that this impacts upon tourist safety is explored as backdrop to discussions. Tourism relies upon the ability for people to travel in and around the countries they travel to, often taking on the local travel arrangements prevalent in their destination. These local travel arrangements enable leisure tourists to explore their destination and volunteer travellers to live and work as locals. Is it time to consider and further the research on road risks as a growing feature of tourism?