我国农村公路建设中的资金问题

在当前全国各地纷纷加大农村公路建设的背景下,抓住机遇,积极摸索创造出一条适合于各地区农村自身特征的融资之道,在实践中逐步建立起国家扶持引导、地方主体投资、市场化融资和社会筹资相结合的多渠道、多形式的农村公路建设资金筹集体制,具有十分重要的现实意义.     

"市民社会"理论的历史流变及其现代意义

“市民社会”理论是近代西方政治哲学中的重要理论。这一理论的发展经历了一个历史的流变过程。市民社会理论尤其是马克思的市民社会理论，对于社会主义市场经济条件下中国市民社会的建立，以及我国市场经济的发展有着重要的理论和现实意义。     

Modelling the potential for cycling in access trips to bus,train and metro in Rio de Janeiro

Most studies that address the integration of cycling and public transport (PT) focus on developed countries and deal with multi-modal bicycle-train trips. Little is known about the integration of cycling and other main modes such as bus and metro, especially in developing countries, where entirely different socio-economic and trip making conditions prevail. The aim of this study is to model the propensity of current PT users to shift to the bicycle in access trips to bus stops, train and metro stations in Rio de Janeiro, Brazil. Interviews were conducted to collect data on the socio-economic characteristics of the interviewee, trip and spatial characteristics and self-reported barriers and motivators for bicycle use. Two binary logit models were estimated to predict the main factors affecting the propensity to use a bicycle as feeder mode to PT. The results show that socio-economic characteristics as well as barriers and motivators are important factors to explain propensity for bike and ride. The barriers’ model reveals that personal constraints, living too close to the PT boarding point, current parking conditions and public safety play a role. For the motivators’ model, changing home location, owning a bicycle, implementation of cycle ways and improvement in parking conditions are explanatory. Policy recommendations are formulated to increase bicycle ownership and improve cycling infrastructure.     

我国城市轨道交通发展条件指标

针对目前我国城市轨道交通发展条件与实际情况不相适应的状态,提出2个方案:一是从需求、可能性和建设能力3方面对指标进行分析和筛选;二是从需求和可能性的复合性指标进行分析。经比选后推荐方案1作为我国城市轨道交通发展条件的基本指标。在此基础上,综合考虑各方面因素及与现行有关政策的衔接,提出适应我国城市轨道交通健康持续发展的发展条件指标,并对有关问题提出建议。     

国外120kV变电站接入系统方案短路偏差分析

在未知电力系统条件下,对变电站接入电力系统方案的短路分析进行了探讨,对比分析了假设条件与实际条件下的短路计算结果,并给出了短路计算偏差分析。     

Comparison of updating techniques in transferability analysis of work trip mode choice models in developing countries

This study analyzes the performances of updating techniques in transferability of mode choice models in developing countries. A model specification, estimated in Ho Chi Minh City, was transferred to Phnom Penh. Naïve transfer and four updating methods associated with small sized samples were used in the transfer process and were evaluated based on statistical perspective and predictive ability. The study also illustrates the problems faced in model transferability development, due to the lack of available and suitable data in Phnom Penh. This lack is strongly related to different methods and structures applied in collecting the data. Simplified approaches to the difficulties are proposed in the study. The results show that updating ASCs, updating both ASCs and scale parameter, and use of combined transfer estimators all produce significant improvement, both statistically and in predictability, in updating the model. The last two methods have proven to be superior to the first method, owing to the inclusion of transfer bias considerations in the estimations. However, small data samples should not have large transfer bias when using combined transfer estimators. It is also concluded that naïvely transferring a model is not recommended, and Bayesian updating should be avoided when transfer bias exists. Copyright © 2010 John Wiley & Sons, Ltd.     

论轨枕式转辙机的发展方向

本文结合ZYJG型轨枕式电液转辙机已具有的功能和结构特点,探讨了轨枕式转辙机的功能理念与结构设想。     

Workshop 6: The public agenda: What is working and what is missing

Workshop 6 topics covered social inclusion, the informal transport sector, transport in developing countries and sustainability. The strong connections and complimentary goals were noted, where solutions to social exclusion and greenhouse gas reduction can both be realised with good transport and urban planning. There is an opportunity for developing countries to avoid the transport mistakes in many developed countries, such as car dependence. This will involve the development of infrastructure that offers accessible public transport to the majority of people, providing resources to the informal transport system and integrating this with public transport. The workshop considered specific issues such as rural transport, new technology, car tolls to subsidise public transport, safety issues with informal transport and the failure to evaluate the longer-term impacts of many major transport infrastructure developments. Recommendations were made in relation to research and policy and future Thredbo topics.     

广西城乡道路客运一体化发展对策研究

文章介绍了广西城乡客运发展的现状,阐述了广西城乡道路客运一体化发展具备的条件,分析了城乡道路客运一体化发展存在的主要问题,并提出了相应的解决对策。