New Generation of Planning Structures

Russell, Alan D.; Wong, William

doi:10.1061/(asce)0733-9364(1993)119:2(196)

Cited by 89 publications

(33 citation statements)

References 11 publications

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“…So the crew allotted for that particular activity is forced to wait till the space vacated by the crew allocated for the preceding activities [8]. This idle time turns to the excess of project cost.…”

Section: Work Continuitymentioning

confidence: 99%

A Model for Automated Generation of Resource-Driven Construction Schedule for Housing Industry

Devi

Ananthanarayanan

2007

Automation and Robotics in Construction &Amp;#8213; Proceedings of the 24th International Symposium on Automation and Robotics

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The efficacy of managing a construction project mainly depends on proper planning and scheduling. Mass housing projects are highly repetitive in nature, as the methods used for construction are often repetitive or cyclic. Resources are therefore being deployed repeatedly for the similar or identical tasks in these projects. In order to eradicate delays in mobilizing resources, an efficient resource schedule is required. Traditional scheduling tools like Critical Path Method (CPM), Programme Evaluation and Review Technique (PERT) are less effective in scheduling repetitive construction projects, as they consider availability of resources are unlimited. The main challenge in preparing construction schedule for repetitive projects is synchronizing the precedence logic and the allocation of resources as per requirements for all the activities. Consequently, activity scheduling and resource planning are prepared in parallel and this will facilitate in eliminating delays and idle resources across the projects thereby, controls the chain-reaction management (ripple effects). Nevertheless, almost all the repetitive scheduling methods developed so far have been giving focus on continuous repetitive projects, whereas in the present study, the emphasis is on discrete (non-linear) repetitive projects. This paper presents a model that uses genetic algorithms to optimally assign resources to repetitive activities, which aimed to minimize the total project cost & duration, idle cost & time and to maximize resource utilization. In the present study, an attempt is made to generate a resource-driven construction schedule automatically, with which resources can optimally be allocated to the activities. This schedule can be very useful in improving productivity and saving construction time and cost and also in decision-making. In addition, a case study is delineated to check the efficiency and effectiveness of the resource-driven construction schedule which is automated.

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Section: Work Continuitymentioning

confidence: 99%

A Model for Automated Generation of Resource-Driven Construction Schedule for Housing Industry

Devi

Ananthanarayanan

2007

Automation and Robotics in Construction &Amp;#8213; Proceedings of the 24th International Symposium on Automation and Robotics

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“…The explicit representation of activity relationships is one of its main advantages. However CPM does not deal effectively with repetitive cycles, randomness and probabilistic estimates, and network branch decision-making [8,11].…”

Section: Past Researchmentioning

confidence: 99%

Object-Oriented Construction Scheduling

Fan¹,

Wang²

2000

Proceedings of the 17th IAARC/CIB/IEEE/IFAC/IFR International Symposium on Automation and Robotics in Construction

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Current network techniques presume that there is only one logical sequence of the activities in a project, therefore planners need to choose one particular logical sequence of the activities even if there is more than one possible sequence. This may request engineers expend many work hours to update the variable relationships between activities to keep a meaningful schedule, which effectively controls the progress of a project. This paper discusses the logic changes during the course of delivering the project. An object-oriented algorithm and computer system, called OERT and OERTSS respectively, have been developed to automatically update the logic changes providing the impact of logic change on the project completion date and the critical path thereby reflecting the progress of the project faster.

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“…Bar Chart and Critical Path Method (CPM) scheduling receive criticism in the literature for their inability to maintain work continuity in repetitive projects [4][5][6][7]. Furthermore, such scheduling techniques assume the resources as unlimitedly available in the initial development of a schedule and for this reason, requirement to revision occurs later to adjust the schedule to resource limitations [2].…”

Section: Introductionmentioning

confidence: 99%

Evaluating Schedule Uncertainty in Unit-Based Repetitive Building Projects

Ökmen¹

2013

Journal of Construction Engineering and Project Management

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New Generation of Planning Structures

Cited by 89 publications

References 11 publications

A Model for Automated Generation of Resource-Driven Construction Schedule for Housing Industry

A Model for Automated Generation of Resource-Driven Construction Schedule for Housing Industry

Object-Oriented Construction Scheduling

Evaluating Schedule Uncertainty in Unit-Based Repetitive Building Projects

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