单点登录技术在铁路信息系统中的应用探讨

主要针对目前铁路信息系统用户管理各自独立的现状,介绍了单点登录技术及SAML的原理,并提出了单点登录技术在铁路信息系统中的实现方案,使得用户进行一次身份认证就可达到对多个应用系统进行访问,提高了用户工作效率,增强了系统整体安全性.     

铁路工务日报月报信息管理系统的研究与开发

铁路工务现场作业历史数据的收集、管理和经济评价,是工务信息管理系统的重要基础,须通过工务日报月报的管理来实现.介绍了工务日报月报信息管理系统的设计思路、工务作业编码、系统实现和应用情况.     

铁路地质灾害信息系统框架设计

介绍了基于GIS技术构建的铁路地质灾害信息系统的总体结构与功能特征,详细讨论了系统实现中的3个关键问题:铁路地质灾害分析评价和预誓预报模型与GIS技术的耦合;铁路地质灾害多源海量数据的采集与存储;铁路地质灾害信息Web发布系统的设计.     

秦沈客运专线售票系统的设计与实现

主要介绍秦沈客运专线售票系统的体系结构、所采用的新技术及实现的自动售票和自动检票相关的技术和功能.     

浅谈轨道交通乘客资讯系统

对轨道交通乘客信息系统(PIS)的系统组成、主要功能等进行了详细的描述,结合实践经验,对轨道交通乘客资讯系统的建设提出了几点建议.     

自动闭塞区段继电式逻辑检查功能联锁试验方法

兰新线自动闭塞区间继电式逻辑检查改造工程已经接近尾声,目前该工程处于开通前的联锁倒接试验阶段。在阐述区间逻辑检查功能性试验的基础上,模拟列车场景试验进行了进一步分析,对现场继电式逻辑检查电路的故障处理有一定的参考作用。     

A reliability-based assignment method for railway networks with heterogeneous passengers

Travel reliability can play an important role in shaping travelers’ route choice behavior. This paper develops a railway passenger assignment method to capture the reliability-based route choices, where the trains can have stochastic delays. The overall travel reliability has two components: the travel time reliability (of trains) and the associated transfer reliability (of connections). In this context, mean-and-variance-based effective travel cost is adopted to model passengers’ evaluation of different travel options in the railway network. Moreover, passengers are heterogeneous as they may evaluate the effective travel cost differently, and they may have different requirements for the successful transfer probability (if transfers are involved in the trip). The determination of travel time reliability (of trains) is based on the travel delay distribution, and the successful transfer probability is calculated based on the delay probabilities of two trains in the transfer process. An algorithm has been designed for solving the model, and numerical examples are presented to test and illustrate the model.     

An integrated framework for carbon footprinting at container seaports: the case study of a Chinese port

The objective of this research is to establish an integrated framework for carbon footprinting (CF) at container seaports (CSs). Three methodological approaches are used in this research: the multiple case study to choose suitable evaluation methods, the case study for verification of the proposed framework, and the quantitative method to calculate the emissions. The proposed integrated framework consists of five modules: policy components, sources structure, input data, emissions estimation and mitigation strategies. The effectiveness of the integrated framework is demonstrated through the practical application in Qingdao Port in China. The case study results in the detailed estimation of CO₂ emissions and detects the problem of data collection and data accuracy for CF and the necessity of stakeholders’ cooperation. The integrated framework serves to evaluate, analyze and control CO₂ emissions from the CS operations.     

海南省多机场体系协同发展建议

航空运输是进出海南省最重要的交通运输方式之一,对海南经济社会发展起着重要作用。为进一步加快海南自由贸易港建设,需要切实推进航空运输来往自由便利,这对海南多机场体系建设提出了更高要求。目前,海南省多机场体系正在快速成长阶段,但航空运输市场需求与基础设施供给不足的矛盾突出,机场功能定位和管理体制还有待理顺。本文梳理了海南省多机场体系发展特征,分析研究了协同发展面临的问题,最后提出相关发展建议。     

Guidance for new policy developments on railway noise and vibration

Noise and vibration are two of the main problems associated with railways in residential areas. To ensure quality of life and well-being of inhabitants living in the vicinity of railway paths, it is important to evaluate, understand, control and regulate railway noise and vibration. Much attention has been focused on the impact of noise from railway traffic but the consideration of railway-induced vibration has often been neglected. This paper aims to provide policy guidance based on results obtained from the analyses of relationships estimated from ordinal logit models between human response, railway noise exposure and railway vibration exposure. This was achieved using data from case studies comprised of face-to-face interviews (N = 931), internal vibration measurements (N = 755), and noise calculations (N = 688) collected within the study “Human Response to Vibration in Residential Environments” by the University of Salford, UK. Firstly, the implications of neglecting vibration in railway noise policies are investigated. The findings suggest that it is important to account for railway induced vibrations in future noise and transport policies, as neglecting vibrations results in an underestimation of people highly annoyed by noise. Secondly, implications of neglecting different types of railway sources are presented. It was found that the impact of noise and vibration form maintenance operations should be better understood and should be taken into account when assessing the environmental impact of railways in residential environments. Finally, factors that were found to influence railway vibration annoyance are presented and expressed as weightings. The data shows that factors specific to a particular residential area should also be taken into account in future vibration policies as the literature shows that attitudinal, socio-demographic and situational factors have a large influence on vibration annoyance responses. This work will be of interest to researchers and environmental health practitioners involved in the assessment of vibration complaints, as well as to policy makers, planners and consultants involved in the design of buildings and railways.