Individual freight effects,capacity utilization,and Amtrak service quality

This paper offers a new perspective on the post-deregulation rail industry. We hypothesize that a link exists between individual freight effects and Amtrak service quality. Specifically, we investigate the relationship between freight control of the infrastructure on which Amtrak trains operate and Amtrak train delays. Our sample consists of 1117 directional station-pairs for fiscal years 2002 through 2007 on 28 Amtrak non-Northeast Corridor passenger routes. We found that freight effects have a significant impact on Amtrak train delays after controlling for other important delay determinants such as the capacity utilization rate. The impact is higher on long-distance routes. We also observed significant differences between the effects of different freight railroads. For example, Amtrak operations on infrastructure controlled by several Class I railroads experienced significantly larger delays than baseline operations, while Amtrak train delays on Burlington Northern and Santa Fe’s tracks actually fell below baseline levels.     

基于XML和Web Service的异构数据库数据交换

随着Internet上连有越来越多的异构数据库系统,这就导致数据共享比较困难,造成了资源的极大浪费。本文建立了两种异构数据库平台,阐述了使用XML和Web Service实现异构数据库存取数据的原理,最后实现了异构数据库中表之间数据交换,为异构数据库之间数据共享提供了技术支持。     

利用SCE组建安全可控网络

SCE（Service Control Engines）为Cisco服务控制引擎产品，是软硬件结合的服务控制平台，支持互联网IP流量的分类、分析和控制。简单介绍了SCE在网络中的组网方案，并详细阐述该设备在宽带网络中的不同应用。     

服务地方经济建设 促进船检业务发展

《珠江三角洲地区改革发展规划纲要》的颁布实施，对珠三角地区经济社会的发展具有重要战略意义，为珠三角地区船舶工业和航运业的发展提供了历史机遇。本文以珠江三角洲地区相关的船检分支机构[主要以广州海事局（广东省船舶检验局广州分局）为例]如何把握这一历史时期，更好地履行船舶检验职责和体现公共服务职能，发挥专业优势为船舶工业和航运业发展服务，在服务地方经济建设的同时实现自身科学发展为课题进行思考，提出了相应的对策建议。     

Rethinking bus punctuality by integrating Automatic Vehicle Location data and passenger patterns

This paper investigates punctuality at bus stops. Although it is typically evaluated from the point of view of bus operators, it must also account for users, as required in recent service quality norms. Therefore, evaluating punctuality at bus stops is highly important, but may also be a complex task, because data on both bus arrivals (or departures) and users must be taken into account and processed. Data on buses can be collected by Automatic Vehicle Location (AVL) systems, but several challenges must be addressed in order to use them effectively. Passengers data at bus stops cannot be derived from AVL, but they can be used to derive passenger patterns and need to be integrated into processed AVL data. This paper proposes a new punctuality measure defined as the fraction of passengers who will be served within an acceptably short interval after they arrive. A method is proposed to determine this measure: it provides (i) several rules to handle AVL collected data, (ii) a procedure integrating processed AVL data and potential passengers’ patterns and (iii) a hierarchical process to perform the punctuality measure on each bus route direction of a transit network, as well as for every bus stop and time period. The paper illustrates the experimentation of this method on more than 4,000,000 data of a real bus operator and represents outcomes by easy-to-read control dashboards.     

广西交通信息化建设业务需求探讨

交通信息化建设是以解决交通部门的管理需求和满足公众服务的要求为目的的。文章阐述了广西交通信息化建设的现状及存在的问题,探讨了信息化业务需求开发的意义和必要性,并提出了广西交通信息化业务需求开发的思路及建议。     

论企业服务质量

本文对企业提高服务质量的特性、特征进行了分析，提出了企业服务质量的测定和管理方法。     

Does competitive tendering improve customer satisfaction with public transport? A case study for the Netherlands

During 10 years experience with competitive tendering of regional and local public transport in the Netherlands, national average trip satisfaction of passengers increased from 6.84 to 7.25 (+0.41). This is a remarkable improvement, but a closer look at the data reveals that also in regions without competitive tendering the improvement in satisfaction was substantial. The difference in the improvement for regions with and without tendering is only +0.06. Tendering led in the majority of concession areas to an improvement of average trip satisfaction, but in some 40% of the cases a deterioration was observed. A change of operator in general has a negative impact on satisfaction. We also find that the effect on satisfaction of early tendering is larger than of later tendering. This may well be the consequence of a shift in emphasis of authorities and operators from quality improvement to efficiency improvements. The model building and analysis is based on the comparison per year-pair of regions tendered versus regions non-tendered (in that specific year-pair). So we compare the effects on satisfaction of tendered regions relative to non-tendered regions.An analysis concerning the weighted satisfaction judgments of 15 underlying service attributes revealed that ‘service frequency, on-time performance, travel speed, and vehicle tidiness’ contribute the most to the effect on satisfaction in the tendered regions. We found that new vehicles impact highly on satisfaction with travel speed and vehicle tidiness. The emphasis in the tenders with increasing service frequency, led to an increase in satisfaction but, may have a deteriorating effect on (the satisfaction with) on-time performance.     

铁路货运服务质量评价探讨

铁路货运服务质量关系到铁路企业形象和效益。采取定性和定量相结合的研究方法,建立功能质量测评体系,根据货运部门自身的特点建立相应的技术质量量化测评体系,最终将指标数量值转化成评定的等级。并通过实例验证了该评价方法的现实性和可操作性。     

Public transport in towns - Inevitably on the decline?

Bus transport in Linköping, a town of 140?000 people, was strongly on the increase up to the beginning of the 1980s, when a negative trend-break occurred. A demand model is developed which explains both the ongoing decline and the preceding increase. Based on this model, it is examined whether a change of the current bus transport policy towards an optimal pricing and investment policy from a social point of view could evoke a new and positive trend-break. Taking current trends in the exogenous factors into account it would. However, this could depend on a possible revival of bicycling in towns.