Mobility, social exclusion and well-being: Exploring the links

Building on a growing research foundation, transport policy makers have begun to associate the ability to be mobile with having a role in the facilitation of social inclusion. However, the further connection to well-being is not as well understood. This paper explores the association between a person’s travel patterns, their risk of social exclusion and self-assessed well-being. Key influences on social exclusion are discussed, with trip making emerging as a significant influence. Trip making is not a significant direct influence on well-being but does exercise an indirect influence through the impact on risk of social exclusion. The modelling process enables a value for additional trips to be estimated, the value being about four times the values derived from conventional generated traffic approaches. Similar high values are found in separate metropolitan and regional case studies, confirming the significance of the results.     

广州市快速公交系统影响评价

为分析广州市快速公交(BRT)运营一年来的实施效果,评估其对出行者、城市和交通发展的影响,开展影响评价研究.提出了BRT影响评价层次分析框架,分别从客流量、服务水平、环境效益、社会效益以及经济效益五个层面分析了广州市BRT的实施效果.评价分析结果证明:BRT开通运营后,乘客出行时间明显缩短,公交运行速度和准点率显著提高...     

香港“城铁一体化”开发模式对城际轨道交通可持续发展的启示

当前国内城际轨道交通的发展对以轨道交通为导向的城市综合开发提出更高的要求,针对性剖析香港铁路发展历程和成功经验,结合相关数据分析,研究城铁一体化综合开发模式对城际轨道交通可持续发展的作用和意义,对该模式下的财务、政策和技术层面的问题进行探讨,提出城铁一体化开发须在政策层面制定相应的权益流程,实施开发建设的集约化;在运营层面体现共赢原则,构建轨道交通运营+效益返还机制;针对城市各区域发展不同步的特点,在一体化建设中采用灵活的预留机制满足分期建设的需求,最终实现轨道交通的可持续发展。     

南淝河航道整治工程简介

简要介绍南淝可航道的整治工程建设规模和标准 ,及经整治后航道所发挥的作用。     

Estimating travel time functions for urban roads: options and issues

Travel time functions specify the relationship between the travel time on a road and the volume of traffic on the road. Until recently, the parameters of travel time functions were rarely estimated in practice; however, a compelling case can be made for the empirical examination of these functions. This paper reviews, and qualitatively evaluates, a range of options for developing a set of travel time functions. A hierarchy of travel time functions is defined based on four levels of network detail: area, corridor, route and link. This hierarchy is illustrated by considering the development of travel time functions for Adelaide. Alternative sources of data for estimating travel time functions are identified.

In general, the costs and benefits increase as the travel time functions are estimated at finer levels of network detail. The costs of developing travel time functions include data acquisition costs and analysis costs. The benefits include the potential for reducing prediction errors, the degree of application flexibility and the policy sensitivity of the travel time functions.     

Estimating the bus user time benefits of implementing a median busway: Methodology and case study

This paper presents a general framework to estimate the bus user time benefits of a median busway including the effects on travel time and access time. Unlike previous models, we take into account the effects of geometry and the interaction with the demand structure. Models for predicting the bus in-vehicle time benefits of a median dual carriageway busway against mixed traffic condition on 2 and 3 lanes roads are estimated using data from a case study in Santiago (Chile), using a bus travel time model empirically estimated and considering different base case situations, including mixed traffic operations and bus lanes. Results of the application show that the expected in-vehicle time savings of a median busway might be reduced by access time losses due to increased walking distances and road crossing delays. Also, that net time benefits can vary significantly according to the base situation and the structure of demand considered. These findings point out to the need of including a wider set of impacts when studying the benefits of median busways, beyond in-vehicle time savings only. The empirical work presented here is completely based on passive data coming from GPS and smartcards, what makes easier and cheaper to conduct this type of analysis as well as to do it with a comprehensive scope at an early stage of the development of a BRT project. This framework can be extended to other types of dedicated bus lanes provided that a corresponding bus travel time savings model is available.     

提高施工企业经济效益的途径

经济效益是施工企业生存与发展的命脉,笔者围绕这一主题进行了探讨.     

铁路客运列车开行经济效益评估方法及应用研究

铁路客运列车开行的经济效益评估,要测算客运列车开行效益,还要结合资金运用成本,借助财务分析工具,全面综合分析是否经济可行.广铁集团开发应用了相关信息系统,本文对其功能、技术、应用情况进行简要介绍.     

轨道交通项目的外部效益分析及实例

通过分析轨道交通项目不同受益主体，对轨道交通项目所产生的外部效益进行分类，并建立各效益的计算模型，并根据保守计算的原则，对成都地铁2号线进行实例分析，用数据证实轨道交通项目可以产生巨大的外部效益。     

AFC系统互联网票务经济效益分析及探讨

从传统AFC业务模式和互联网票务业务模式分析对比出发,说明互联网票务业务的上线对于提高运营管理效率、降低运维及票务运作成本、提升乘客满意度等方面具有重大意义,有效地提升了地铁行业门户自动售检票系统的整体服务质量.结合目前国内现状,重点探讨互联网票务上线以来的经济效益分析,旨在对既有工程运营进行总结,对后续工程实施进行指...