Applying Lean Construction to Construction Project

2013 ◽  
Vol 834-836 ◽  
pp. 1976-1983 ◽  
Author(s):  
Nguyen Thanh Binh

Lean construction is aimed to improve construction performance by eliminating wastes that do not add value to the customer. This project studies lean construction and its application in concrete construction projects at both the operation and project levels. In conjunction with a concrete contractor, actual concrete construction projects were observed, and problem areas contributing to delay and other wastes were identified. At the project level, the lack of coordination among subcontractors was cited as one of the major factors contributing to schedule delays. This paper proposes to use the last planner concept, the linear scheduling method, and the graphic schedule method to improve communication and look-ahead scheduling. Related software was developed for implementing this scheduling tool. At the operation level, a systematic approach of was identification, operation re-design, and employee training was applied to reduce wastes found in the field operation. A case study of bulkhead installation was used to demonstrate this approach, and a 3D animation was created for employee training.

2013 ◽  
Vol 357-360 ◽  
pp. 2228-2232
Author(s):  
Xiu Feng Xue ◽  
Jian Guo Chen

Lean Construction attracts widespread attention since it was formally proposed in 1993, which have made far-reaching development both in the theory and practice. Construction projects seldom happen as ideally as planned because of constructions nature uncertainty and variability, which always spoil plans and become major factors that affect project performance and productivity. The goal of the construction industry is to increase the planning-reliability, to impact the productivity of workflow and hence the project performance. The attention on improve the workflow will be a practical way to avoid these bad affections. This paper, through focusing the measurement of workflow and the methods to maintain the continuous workflow, introduces all-round methods called Last Planner System and Buffer Management two key indexes for keeping continuous workflow within giving reasonable improvements for better performance in construction industry.


2018 ◽  
Vol 195 ◽  
pp. 06012
Author(s):  
Jati Utomo Dwi Hatmoko ◽  
Human Adi Darmawan ◽  
Zuldi Sabrian ◽  
Mochamad Agung Wibowo

Last Planner System (LPS) is one of Lean Construction’s tools for scheduling to enhance project’s reliability, productivity, and performance. It has already been widely adopted in many developed countries and shown benefits, such as shorter duration, less rework, and better communication. Despite its benefits, the use of LPS is almost unheard of in Indonesian. The aim of this exploratory research is to investigate the readiness of LPS implementation for Indonesia’s projects. The assessment is based on five principles of LPS, i.e. Master Schedule, Pull Planning, Making Work Ready, Weekly Work Plan, and Learning, using four categories of assessment, i.e. not aware, aware, willing, and implemented. The levels of readiness are categorised into none, poor, moderate, high and excellent. Data was collected by interviews and questionnaire surveys with project managers and observations of four construction projects. The results show that on average the readiness level is moderate, particularly for Pull Planning and Look-ahead Plan. The main challenges identified include lack of confidence and resistance to change. These research findings provide an initial understanding of LPS as perceived by contractors, and later can be used as inputs to build a strategic framework to enable wider LPS adoption to improve Indonesia’s project performance.


2013 ◽  
Vol 438-439 ◽  
pp. 1777-1781 ◽  
Author(s):  
Jun Yan Jin

Schedule control is one of the main tasks of engineering project management, and effective schedule management is an important means of realization of project objectives. The traditional project schedule management is lack of dynamic adjustment and update, and various drawbacks of the method have been appeared. Last planner system (LPS) is a kind of schedule management of project based TFV theory of lean thinking, which transfers the traditional "push" system into "pull" system for schedule management. Based on the master schedule, look-ahead schedule and weekly work plan, schedule management with LPS will facilitate the realization the projects schedule objective.


2020 ◽  
Vol 38 (7A) ◽  
pp. 1069-1076
Author(s):  
Layth T. Ali ◽  
Raid S. Abid Ali ◽  
Zeyad S. M. Khaled

Cost overrun in construction projects is a common phenomenon in Iraq. This might occur due to diversity of factors. This study aims to identify the factors influencing construction projects cost that are potentially controllable by main contractors. A field study through a questionnaire survey was directed to a sample of related Iraqi professional engineers from general contracting companies at both public and private sectors. Their opinions on the impact and frequency of each factor were investigated. The questionnaire offered (59) factors classified in (8) categories namely; legislations, financial and economic, design, contractual, site management, material, labor and equipment. The factors were ranked according to the highest Relative Importance Index (RII). The study revealed (10) major factors that are potentially controllable by main contractors namely; labor productivity, sub-contractors and suppliers performance, equipment productivity, site organization and distribution of equipment, experience and training of project managers, scheduling and control techniques, planning for materials supply, planning for equipment supply, materials delivery and planning for skilled labor recruitment. Recommendations to aid contractors and owners in early identification of these factors are also included in this study.


2018 ◽  
Vol 8 (3) ◽  
pp. 293-304 ◽  
Author(s):  
Chukwuka Christian Ohueri ◽  
Wallace Imoudu Enegbuma ◽  
Ngie Hing Wong ◽  
Kuok King Kuok ◽  
Russell Kenley

Purpose The purpose of this paper is to develop a motivation framework that will enhance labour productivity for Iskandar Malaysia (IM) construction projects. The vision of IM development corridor is to become Southern Peninsular Malaysia’s most developed region by the year 2025. IM cannot realise this foresight without effective labour productivity. Previous studies have reported that the labour productivity of IM construction projects was six times lower than the labour productivity of Singapore construction projects, due to lack of motivation among IM labourers, and a shortage of local skilled labour. Therefore, there is a need to study how to motivate IM construction labourers, so as to increase their productivity. Design/methodology/approach A quantitative research method was used to collect data from IM construction skilled labourers and construction professionals, using two sets of questionnaire. The respondents were selected using a purposive sampling technique. In total, 40 skilled labourers and 50 construction professionals responded to the questionnaire survey, and the data were analysed using Statistical Package for Social Science software (version 22). Findings The analysis revealed the major factors that motivate labourers participating in IM construction projects. The factors were ranked hierarchically using Relative Importance Index (RII) and the outcome of the ranking indicated that effective management, viable construction practices, financial incentives, continuous training and development, and safe working environment were the most significant motivation strategies that positively influence IM construction labourers. Originality/value The study developed and validated a framework that can be used to boost the morale of IM construction labourers, so that their productivity can be increased. Implementation of the established motivation framework will also lead to career progression of IM construction labourers, based on the training elements in the framework. This career prospect will attract local skilled labourers to participate in IM construction projects.


2021 ◽  
pp. 4-12
Author(s):  
E.Yu. Vasilyeva

The author analyses the factors, which affected the volume of actual costs of investment-and-construction projects in 2020-2021 most of all. The three major factors, including price dynamics in the market of building materials, situation in the market of construction tools and equipment as well as the trends in the transport-and-logistic sphere are considered. The order of modification of the Technique of drawing up the estimate of the contract on the project, caused by the growth of costs for the used materials is described. The conclusions on the prerequisites of the rise in price of the realization value of the construction projects in current and following year are drawn.


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