铁路突发公共卫生事件预警系统初探

铁路突发公共卫生事件,一类是由地方性公共卫生事件的冲击而引起,另一类则是由铁路内部公共卫生管理不良所致。为能尽早识别第一类公共卫生事件;识别铁路公共卫生管理可能出现失误的条件,尽早采取有效的预控措施,防止第二类事件的发生,降低第一类事件的扩散面,减少损失,建设具有预警、纠偏、免疫功能的铁路突发公共卫生事件预警系统已是当务之急。     

一个可用于铁路无线接入网的有效安全协议

文章分析了宽带无线接入网MAC(介质访问控制)层的安全协议,发现其中存在着安全隐患;以增加少量通信负荷与计算量为代价,提出一个新的安全有效方案,实现了用户和基站之间的双向认证,确保基站可抵抗重放攻击,并保证了业务数据的完整性和真实性。     

门禁控制器的设计与开发

阐述了基于WG26格式射频卡的、利用SST89E58单片机完成的两门门禁控制器的总体技术要求和技术解决途径，给出了门禁控制器设计的基本结构，对各个部分的设计和开发进行了阐述和分析。该控制器充分利用单片机的功能完成了门禁系统的各项功能，包括门的管理和卡的管理等工作。门禁控制器设计开发的完成，为门禁系统的设计和开发奠定了基础。     

Transantiago: A tale of two cities

The Chilean government decided to modernize Santiago's entire public transport system, integrating the underground and the private bus networks based on a structure of trunk and feeder services, and a fare-payment by touchless smart card. The new, integrated transit system, known as Transantiago, very soon ran into serious problems that alienated much of its user base and significantly lowered the government's approval ratings. This paper recounts how Transantiago was planned and designed and then discusses its evolution after implementation. It concludes with suggestions for the Transantiago authorities and lessons to be learned from this traumatic process.     

基于城市规划管理角度的停车问题对策研究

首先分析目前对于停车问题的常规解决思路及措施,然后分析其缺陷,最后从城市规划管理角度提出相应的保障措施及对策。主要包括控制性详细规划的编制与实施、建筑物配建标准制定及实施、土地复合开发等管理规定。研究对于指导城市新区建设、改善停车现状有重要的指导意义。     

文件存取权确认系统的数据编外管理设计法

文件存取权确认系统一直是多用户计算机具有的一种有效的文件保护机制。本文提出磁盘数据编外管理法,在用此法为单用户计算机设计类似系统方面进行了尝试并取得满意结果。文中通过实例介绍一种具体实现方法。因为不用改动操作系统,实现容易,便于推广。     

Cooperation in transit delivery in West German metropolitan areas

West Germany is densely populated, averaging 245 inhabitants/km², but varying widely between urban agglomerations and rural areas. Transport volume has increased by 40% since 1970, with virtually all growth due to private automobiles. Since 1981 public transit has been suffering from decreasing demand.A 1964 Expert's Report to the German federal government was the stimulus for initiating an effective funding mechanism for new public transit construction. In 1965 Germany's first federated transit authority was founded for the region of Hamburg.Principal among the goals of any cooperative agreement among transit companies are improvements for the passengers and improvement of revenues for the companies. To attain these ends, two distinct forms of transit aggrements have been developed in Germany: transit cooperative (Verkehrsgemeinschaft) and transit federation (Verkehrsverbund). The former is more suitable for smaller to medium-sized towns, while the latter is more suitable for larger cities. The two types are described in this article.German transit federations during the 1970s succeeded in significantly increasing ridership, while during the 1980s patronage has either remained steady or has declined. Yet transit federations showed much better perfomance than did public transit in general. In terms of costs and revenues, no public transit organization in Germany is able to break even; deficits vary between 42% and 55%. The author concludes, however, that hidden subsidies for automobile traffic are far higher, because of environmental damage and the high social cost of traffic accidents.     

Spatial variations in attitudes toward expanded public transit service

Although recent budgetary considerations by the Federal govenment do not portend well for urban public transit, some transit systems are considering expansion into less densely-settled areas further from the Central Business District. Of some concern to planners has been their belief that suburban and rural dwellers may be much less inclined than urban dwellers to support expansion of transit service. This paper presents an analysis of a random-digit dialing/mail-out, mail-back survey conducted in Washtenaw County, Michigan which was designed specifically to examine differences in attitudes between urban and rural residents. Six mutually-exclusive spatial strata were established based upon population density. This paper tests for expected spatial differences in socioeconomic and demographic variables and then examines spatial variations in attitudes toward public transportation. The major conclusion is that the expected spatial variations in attitudes about transit service provision between the spatial strata do not arise. Most of the significant differences found are with respect to questions which relate to where transit is provided. Residents in rural (urban) areas support more strongly the provision of services to rural (urban) areas. Many residents, however, will support transit service that may not benefit them directly.     

LKJ－93型列车运行监控记录装置记录系统

介绍了ＬＫＪ－９３型列车运行监控记录装置记录系统的组成和数据的形成过程，并从软硬件两个方面论述了设计过程中的技术要点，如数据安全保护、文件管理、动态存储分配等关键技术。     

城市公交中的乘客体验与个体空间占有

立意于对乘客体验的解读,提出＂乘客体验观＂,阐述＂人城和谐＂型的城市公交体系模式,提出个体空间占有概念及衍生公式理论,诠释以乘客体验要素为出发点的城市公交规划和设计思路。