Timetable-based operation in urban transport: Run-time optimisation and improvements in the operating process

Urban public transit provides an efficient means of mobility and helps support social development and environmental preservation. To avoid loss of ridership, transit authorities have focussed on improving the punctuality of routes that operate using timetables. This paper presents a new approach to generating run-time values that is based on analytical development and micro simulations. The work utilizes previous research (described herein) and the experience acquired by Transports Metropolitans de Barcelona (TMB) in operating bus routes based on timetables. Using a sample of historical data, the method used for generating run-time values consists of the following steps: purging and screening atypical trips, based on the consideration of confidence intervals for median trips; segmenting the day into time bands based on the introduction of a new hierarchical classification algorithm; creating initial run-time values based on criteria derived from statistical analysis; adjusting and validating initial run-time values using micro simulations; and evaluating incident-recovery times at the end of trips in order to guarantee the punctual departure of the next trip in the vehicle schedule. To favour service improvement, we also introduced certain indicators that can identify the root causes of non-compliance. As a final step, in order to ensure the applicability and use of the model, we promoted the development of our model within the framework of the HASTUS™ software solution.     

基于ZigBee和GSM的桥隧贯通地线监测

我国铁路桥梁隧道处贯通地线由于不能埋地铺设而容易被盗或损坏.设计一种基于Zig-Bee和GSM技术的远程监测系统,对系统功耗进行了分析计算.对该监测系统进行了实际通信测试和功能计算.结果表明,本设计满足了桥隧贯通地线实时、长期防盗监测的要求.     

对一起罕见机损事故的甄别

对主机曲轴红套滑移,并使二道主轴承严重损坏的机损事故进行了分析,否定了液击及螺旋桨击着异物的推断,并认定系主机飞车所致,对于因船员失察竟使该船能够带伤航行长达８３６ｈ的罕见事故实亦作了合理的解释。     

交通肇事逃逸相关问题分析

对交通肇事逃逸案件的特点及原因进行了分析，同时探讨了交通肇事逃逸案件的赔偿问题，指出实际工作中存在的问题，以期为相关工作提供参考。     

论知识经济时代的汽车产品

知识经济是21世纪的全新经济模式，它的出现给汽车产品制造（经营）企业的发展提出了新的课题。本文从知识经济的一般特点和规律出发，探讨了汽车产品制造（经营）企业在知识经济时代的市场营销活动的特点，给出了在知识经济时代背景下汽车产品制造（经营）企业开展市场营销活动的指导性意见。     

公有民办二级学院学生作弊问题产生的原因及对策探讨

考试是高校教学管理中的一项重要工作,严肃考纪、树立良好考风是提高教学质量的重要保证。考试作弊致使考试结果失真,不能发挥考试对教学效果的评价作用,更达不到考核人才、选拔人才的目的。本文通过剖析公有民办二级学院学生作弊问题产生的原因,提出了完善公有民办二级学院考试管理的初步设想。