Critical Barriers to Traditional Project Progress Measurement: Perspectives of Ghanaian Construction Professionals

Accurate project progress measurement is critical for effective project management. Besides guarantying smooth work progress, it affords project managers the chance to identify early warning signs for peremptory remedial actions to keep the project on schedule and to budget. However, pertinent barriers can suppress the realization of the benefits of an accurate assessment of construction progress. This study aims to identify, examine and prioritize the critical barriers militating against accurate project progress measurement in the Ghanaian construction industry. Sixteen barriers identified from the literature were administered in a questionnaire survey to professionals with tier one construction firms and consultants. Sixty experienced construction professionals practising with tier-one construction firms and consultancy services took part in the survey. The relative importance index technique was used to rank the factors and correlation in responses of the two parties tested by the Mann-Whitney U statistics. The most critical barriers perceived by the professionals were 1) Reliance on Supervisor’s Judgement, 2) Generic and Non-Systematic Approach, 3) Variable Quality of Data and 4) Intricate Measurement Reports. Other highly ranked barriers include 5) Lack of Timely Information, 6) Laborious Data Gathering and 7) Quality Integration Constraint. The findings underpin the need to minimize dependence on subjective opinions and mere experiences of supervisors for assessment of project progress in this age of information technology. Incorporation of a level of automation into traditional progress methods will not only reduce human errors introduced into manually collected data but facilitate visualization of progress reports. Contiguous to a clear specification of the method of progress measurement in the contract document, a system that conveniently integrates cost, time and scope of work into progress measurement must be pursued. Addressing these identified critical barriers will consolidate current construction progress management practices.

“Inverse Projection Method”Model in DEA to Measure Technological Progress

In view of the problems in measuring technological progress by DEA model, premias for DEA application is analyzed in this paper. An extended model of DEA is also raised for the cases running counter to the premisess. And precision about the results of the two models is analyzed.

Pengze Nuclear Power Project in steady progress

At the end of September, the approach way and linkage roads of Pengze Nuclear Power Project, a project developed by China Power Investment Corporation in Jiangxi Province, were all linked up, laying a solid foundation for the construction of the project.

Three Gorges Dam project in great progress as planned

It hasn’t been easy, but almost all of the work on the Three Gorges Project is on schedule, according to a corporation overseeing construction of the dam. The China Yangtze Three Gorges Project Development Corporation has reported that contractors and other staff are working hard to ensure that the flood season does not slow the dam project. The company recently detailed the mammoth tasks that have taken place so

PROJECTS WON 1998 CAS AWARDS FOR S&T PROGRESS AND FOR INVENTIONS

The CAS Awards for S&T Progress and the CAS Awards for Inventions are two major awards issued by the Chinese Academy of Sciences to recognize major research results and inventions produced by CAS scientists that have contributed greatly to the promotion of S&T progress, and social and economic development. In 1998, 12 research works won the CAS Awards for Inventions and 94 works won the CAS Awards for S&T Progress. The following are profiles of some of the prize-wining projects.

Project on Interaction between Agro-ecosystems and Global Change Making Progress

A research project on interaction between agroecosystems and global change has been accepted as a Category Ⅰ contribution to IGBP-GCTE (International Geosphere-Biosphere Programme-Global Change & Terrestrial Ecosystems) Core Research, the highest-level support GCTE has offered to an individual research project so far. This was confirmed by Prof. Noble, GCTE Chairman, in a letter to Prof. Peng Shaolin, Principal Investigator of

PROJECTS WON 1997 CAS AWARDS FOR NATURAL SCIENCES AND FOR S&T PROGRESS

The CAS Awards for Natural Sciences and the CAS Awards for S&T Progress are two major awards issued by the Chinese Academy of Sciences. The former is to recognize the scientific findings and research results by which CAS scientists bring to light natural phenomena, laws and properties in their basic and applied basic research. The latter is to award major inventions or research results produced by CAS scientists that have contributed greatly to the promotion of S&T progress, and social and economic development. In 1997, 68 research projects won the CAS Awards for Natural Sciences, and 106 research works won CAS Awards for S&T Progress. The following are profiles of some of the prize-wining projects.

能源技术进步与区域专业化——特高压输电工程的视角

基于2003—2020年中国285个地级市数据,以特高压输电工程为切入点,研究能源技术进步对区域专业化的影响及作用机制。结果显示:以特高压输电技术为代表的能源技术进步显著提升了区域专业化水平,具体而言,较没有特高压输电项目城市,配备特高压输电工程城市的专业化水平提升约1.09%,且该效应在中小城市、资源丰富城市和内陆地区更强;在考虑样本选择偏差、基期分工水平、调整指标测度、剔除极端值并进行安慰剂检验和倾向得分匹配后,该结果依然稳健;进一步的机制分析表明,特高压建设所表征的能源技术进步通过激发资源禀赋的比较优势、生产的集聚效应来促进地区专业化。继续扩大特高压输电规模,合理实施区域专业化,互通有无、取长补短,对促进区域协调发展具有重要意义。

数字人文档案与国家记忆工程的相互关系与作用研究

探讨“数字人文档案”概念的内涵及意义,剖析数字人文档案与国家记忆工程之间的关系和相互作用,为相关领域的研究和实践提供理论指导和方法支持。通过文献综述和理论分析的方法,全面系统地探讨数字人文档案与国家记忆工程的相互关系和作用。提出“数字人文档案”的内涵是将数字人文成果以档案的形式进行保存、管理和利用,并分析了数字人文档案与国家记忆工程对记忆资源维护的相互促进关系。

基于PROJECT BUS驱动的机械类本科生创新能力培养

研究了基于PROJECT BUS(项目总线)驱动的机械类本科生创新能力培养模式,以市场需求定制人才培养目标,以实验中心开放性实验室和本科生专业导师制为依托,以面向工程实际的产学研真实项目研发作为学习载体,将知识的拓展与项目研究开发过程的迭代相结合,用项目研发的渐进思想与知识构建的思路相对应组织自主实践内容,通过项目BUS贯穿机械专业主干课程知识和创新能力培养过程的始终。有效解决了目前机械类本科生缺乏实际项目研发经验和团队合作精神,创新实践能力弱的关键问题,在理论研究和实践探索取得了显著成效。

BIM技术在建设项目施工进度管理中的应用研究

为了解决施工进度管理中存在管理效率低下、管理方法不合理等诸多问题,将BIM技术引入可以在一定程度上解决上述问题,提高管理效率。首先,对BIM技术与施工进度管理进行概述,归纳总结了传统施工进度管理中存在的问题,并对BIM技术在施工进度管理中应用的优势进行了分析;其次,对BIM技术在建设项目施工进度管理中的应用进行论述,归纳总结了应用BIM技术进行施工进度管理的具体流程;最后,给出了本次研究的相关结论:将BIM技术在建设项目施工进度管理中应用总体可行,能够为施工进度管理提供一种新的方法。

税收信息化建设与企业税收负担:基于金税三期的准自然实验

基于金税三期政策试点推广所引起的准自然实验,利用2009—2018年A股上市企业数据,以带有调节效应的渐进双重差分模型考察了金税三期对企业税收负担的政策效应。结果表明,税收信息化建设能够显著降低企业税收负担,通过稳健性检验后结论依然成立。金税三期降低企业税负的效应还受到企业规模影响,企业规模越小,税收信息化带来的降低税负的政策效应更明显。该政策效应亦存在区域特征依赖性,在东部与中部地区政策效应显著,但西部与东北部地区并不显著。金税三期工程较好解决了税收信息化建设与降低企业税负之间的冲突,这一结论也有助于正确认识信息化建设与降低企业税收负担之间的关系。

信息化管理平台下造价咨询项目实施进度跟踪与质量管控策略

为了提高造价咨询项目实施进度跟踪效率与质量管控水平,在信息化管理平台下,开展了造价咨询项目实施进度跟踪与质量管控策略研究。分析信息化管理平台的功能与特点,基于其功能与特点,构建集信息采集、存储、处理、分析、共享和管理于一体的信息化管理平台,在此基础上,提出了以制定造价咨询项目实施计划、建立进度跟踪体系、实施进度跟踪与调整、规范化造价咨询项目审计工作、建立质量管控机制为核心的项目实施进度跟踪与质量管控策略,为项目实施进度跟踪与质量管控提供基础保障。

代建单位视角下的财政投融资项目进度管理研究

随着财政投融资项目提质增效的需求不断增加,代建单位在项目进度管理方面面临诸多挑战,亟待系统研究与改进。从代建单位视角,全面探讨财政投融资项目的进度管理问题。文章分析了前期阶段,包括勘察设计、前期手续办理及招标管理的关键影响因素与管理方法;深入研究了施工及验收阶段中影响进度的主要因素,并提出了加强现场施工方案审核、资金保障及变更签证控制等有效措施;最后,针对工程结算与财务决算阶段,探讨了影响进度的主要因素及相应的进度管理措施。通过研究,旨在为代建单位在财政投融资项目的进度管理中提供有益的参考和借鉴。

化工工程项目管理与进度控制策略分析

针对现阶段化工工程项目管理与进度控制存在管控力度弱、决策不科学、机制不健全、管理模式陈旧等问题,分析了研究化工项目工程管理、进度控制方案的必要性,提出了合理控制项目进度的方法及策略。结果表明,在保证化工工程项目安全系数的前提下,采取有效的管控措施对化工工程项目管理与进度进行控制,不仅可以提高化工工程项目质量,加快施工速度,还可以促进整个化工工程行业的可持续发展。