Exploring the propensity to perform social activities: a social network approach

Conceptual and empirical models of the propensity to perform social activity–travel behavior are described, which incorporate the influence of individuals’ social context, namely their social networks. More explicitly, the conceptual model develops the concepts of egocentric social networks, social activities, and social episodes, and defines the three sets of aspects that influence the propensity to perform social activities: individuals’ personal attributes, social network composition, and information and communication technology interaction with social network members. Using the structural equation modeling (SEM) technique and data recently collected in Toronto, the empirical model tests the effect of these three aspects on the propensity to perform social activities. Results suggest that the social networks framework provides useful insights into the role of physical space, social activity types, communication and information technology use, and the importance of “with whom” the activity was performed with. Overall, explicitly incorporating social networks into the activity–travel behavior modeling framework provides a promising framework to understand social activities and key aspects of the underlying behavioral process. Juan Antonio Carrasco a PhD candidate in Civil Engineering at the University of Toronto, holds a MSc degree in Transportation Engineering from the Pontificia Universidad Católica de Chile. His doctoral research explores the relationships between social networks, activity–travel behavior, and ICTs. His research interests also include microsimulation, land use-transportation, and econometric modeling. Eric J. Miller is Bahen-Tanenbaum Professor of Civil Engineering at the University of Toronto where he is also Director of the Joint Program in Transportation. His research interests include integrated land-use/transportation modeling, activity-based travel modeling, microsimulation and sustainable transportation planning.     

合武客运专线通信系统组网及工程相关问题的处理

对合武铁路通信工程设计进行了总结和介绍,并重点论述了传输系统、综合视频监控系统、数据网系统、FAS数字调度指挥系统等的组网方案,以及工程中相关问题的处理及设备选型的注意事项,可为其他客运专线通信系统建设提供参考。     

沪宁城际铁路视频监控系统研究

从工程实际应用出发,对沪宁城际铁路视频监控系统的组网方案的应用进行研究和探讨。     

东莞轨道交通35kV供电系统支援供电的探讨

介绍了东莞轨道交通供电系统的概况,阐述了数字通信电流保护方案的原理,比较了数字通信电流保护方案与传统电流保护方案发生母线故障时的处理方式,及支援供电的处理过程,结合供电系统中所面临的主变电所支援供电的问题,探讨了东莞轨道交通未来的网络化供电方案。     

社会网络理论下开展订单式教育的信任机制研究

文章根据社会网络理论中社会资本理论和结构洞理论,分析了信任关系在订单式教育实施过程中的重大作用,并提出了如何构建信任机制的方法和途径,以期对高职院校开展＂订单式＂教育有所启示。     

Leisure mobility styles in Swiss conurbations: construction and empirical analysis

Leisure travel is the most difficult travel purpose to analyse due to the lack of fixed spatial and temporal referents and the consequent flexibility in patterns. This paper addresses lifestyles, social influence, and the travellers’ social networks, issues that have proved valuable for travel behaviour research in confronting the complexity of leisure travel. An approach for constructing leisure mobility styles, based on orientations towards leisure and mobility, will be presented first and then the hypotheses that transport behaviour can be better explained through analysis of leisure mobility styles will be tested. Multivariate analysis reveals that the leisure mobility style group makes a significant contribution towards clarifying variance for the activities ‘Visiting friends and relatives’, ‘Travel participation’, ‘Mode choice’, and ‘Travel distance for leisure’. The use of leisure mobility styles is most useful for developing practical intervention pointers where the in-group homogeneity of lifestyle should be addressed in greater detail.     

车号自动识别系统的组网方式与配置方法

介绍车号自动识别系统(ATIS)关键设备的连网方式和CPS的网络配置及监控方法.     

铁路社保综合管理信息系统框架体系研究

铁路社会保障工作是国家劳动保障工作的重要组成部分,随着铁路管理体制改革不断深化和社会经济飞速发展,落后的铁路社会保障工作方式已不能满足社会保障体系继续发展的要求.在对现有铁路社保工作详细调研分析的基础上,提出铁路社保综合管理信息系统的框架体系,描述该框架各部分组成和功能,旨在探讨铁路社保信息化工作的技术思路.     

Promoting social inclusion in a deregulated environment: Extending accessibility using collective taxi-based services

Bus based public transport has enjoyed revitalisation in many urban areas but outside large towns and cities its provision and quality remains erratic. Many rural settlements have infrequent services giving rise to social exclusion through transport disadvantage.The UK Government highlighted a need in Towards a Sustainable Transport System (2007) for radical new thinking on rural accessibility to help meet goals of quality of life and accessibility for all and to help meet the challenge in finding carbon friendly ways of meeting rural transport needs. This paper reports work undertaken for the Commission for Integrated Transport, an advisory body to UK Government, on how shared taxi-schemes could be developed within a deregulated environment to meet rural accessibility needs. This is based on an analysis of institutional barriers and comparison between successful mainland European schemes and UK schemes. The paper considers economic viability and the levels of subsidy currently used to provide accessibility in rural areas to show the potential for making current expenditure on rural transport in the UK ‘work harder’ to deliver a collective taxi-based service as part of the public transport mix so as to increase rural accessibility.