传统项目管理模式在某高速公路工程中的应用

在介绍项目管理的概念和特点的基础上探讨传统的三元项目管理模式与其他新型项目管理模式的优缺点，结合某高速公路的项目管理实践，具体分析传统项目管理模式在实际工程中的应用情况和存在问题，为工程建设项目中全面引入新型项目管理方法提供了参考。     

船舶修理项目成本控制原则

文章从全面控制，开源与节流相结合，目标管理，责、权、利相结合，节约5方面阐述了合理配置船舶修理中所消耗的人力、物力、财力，控制项目成本，达到降本增效的目的。     

积极推广应用西部项目成果促进广西交通事业发展

文章介绍了近几年广西交通厅在推广应用和加快西部科技项目成果转化方面采取的措施,阐述了积极推广应用西部项目成果对促进广西交通事业发展的意义。     

公路施工项目成本管理的探讨

对公路工程项目管理成本控制的原则进行分析。结合在滨德高速公路的施工项目,提出了成本控制措施。     

Estimating traffic volumes for signalized intersections using connected vehicle data

Recently connected vehicle (CV) technology has received significant attention thanks to active pilot deployments supported by the US Department of Transportation (USDOT). At signalized intersections, CVs may serve as mobile sensors, providing opportunities of reducing dependencies on conventional vehicle detectors for signal operation. However, most of the existing studies mainly focus on scenarios that penetration rates of CVs reach certain level, e.g., 25%, which may not be feasible in the near future. How to utilize data from a small number of CVs to improve traffic signal operation remains an open question. In this work, we develop an approach to estimate traffic volume, a key input to many signal optimization algorithms, using GPS trajectory data from CV or navigation devices under low market penetration rates. To estimate traffic volumes, we model vehicle arrivals at signalized intersections as a time-dependent Poisson process, which can account for signal coordination. The estimation problem is formulated as a maximum likelihood problem given multiple observed trajectories from CVs approaching to the intersection. An expectation maximization (EM) procedure is derived to solve the estimation problem. Two case studies were conducted to validate our estimation algorithm. One uses the CV data from the Safety Pilot Model Deployment (SPMD) project, in which around 2800 CVs were deployed in the City of Ann Arbor, MI. The other uses vehicle trajectory data from users of a commercial navigation service in China. Mean absolute percentage error (MAPE) of the estimation is found to be 9–12%, based on benchmark data manually collected and data from loop detectors. Considering the existing scale of CV deployments, the proposed approach could be of significant help to traffic management agencies for evaluating and operating traffic signals, paving the way of using CVs for detector-free signal operation in the future.     

基于项目导向的开放式实训场所建设探讨

为了适应高职院校项目教学的需求,提出了基于项目开放式实训场所建设构想,提出了开放式实训场所的建设方案,探讨了项目的开放式实训场所的运作机制及其运行机制和遵循的原则,最后从案例实践中总结了开放式实训场所建设经验。     

如何正确处理竣工结算中征地拆迁和签证及价差费用问题

建设工程的竣工结算,是确定工程造价的必要程序和重要手段,也是控制投资的最终环节.如何遵照合法、平等、诚信的原则,正确处理征地拆迁、签证及价差调整中存在的有关问题,此文依据政策文件、承发包合同约定和相关协议及交易习惯进行探讨,并提出方法和建议.以求达到维护国家利益和合同双方当事人的合法权益。     

范围管理在工程一切险索赔中的应用研究

工程一切险作为工程保险的最主要构成部分,对投保人顺利进行工程建设有着重要影响。目前由于投保人工程一切险索赔专业水平受限,本文将范围管理理念引入工程一切险索赔领域,从工程一切险索赔过程中的四个主要范围:保险的标的范围、保险的时间范围、保险的事件范围和保险的赔偿范围进行分析,以利于提高投保人的工程一切险索赔管理水平。     

商务英语课程项目化情景教学改革

高职英语课程项日化教学体现了高职教育培养目标对高职教学的要求，顺应了现代社会发展的要求。商务英语课程项目化情景教学突破了传统的教学模式，通过解决一些现实问题来实现学生对知识的掌握，大大提高学生学习的积极性和主动性，也使学生的动手能力、解决实际问题能力得到很大提高。     

公路绿化工程实施的总结

总结容县至岑溪一级公路梧州段绿化实施的情况。