Resource Unconstrained and Constrained Project Scheduling Problems and Practices in a Multiproject Environment
Construction companies execute many projects simultaneously. In such situations, the performance of one project may influence the others positively or negatively. Construction professionals face difficulties in managing multiple projects in limited resource situations. The purpose of this study is t...
Saved in:
| Main Authors: | , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Wiley
2018-01-01
|
| Series: | Advances in Civil Engineering |
| Online Access: | http://dx.doi.org/10.1155/2018/9579273 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1850175287242784768 |
|---|---|
| author | Marimuthu Kannimuthu Palaneeswaran Ekambaram Benny Raphael Ananthanarayanan Kuppuswamy |
| author_facet | Marimuthu Kannimuthu Palaneeswaran Ekambaram Benny Raphael Ananthanarayanan Kuppuswamy |
| author_sort | Marimuthu Kannimuthu |
| collection | DOAJ |
| description | Construction companies execute many projects simultaneously. In such situations, the performance of one project may influence the others positively or negatively. Construction professionals face difficulties in managing multiple projects in limited resource situations. The purpose of this study is to identify the problems in multiproject scheduling from the practitioner’s perspective and to discover current practices under resource unconstrained and constrained settings. The specific objectives are (1) determining the most challenging issues being faced in handling multiproject environment, (2) enumerating the practices adopted in the industry, and finally (3) identifying the practitioners' perceptions on the multiproject scheduling aspects such as network modeling approaches; activity execution modes; concept of sharing, dedicating, and substituting resources; centralized and decentralized decision-making models; solution approaches; and tools and techniques. An online questionnaire survey was conducted to address the objectives above. The top challenging issues in managing multiproject environment are identified. Factor analysis identified the factors by grouping the variables (a) decision-related, (b) project environment-related, (c) project management-related, and (d) organization-related factors. Resource-unconstrained situation mainly faces the issue of underutilization and wastage of resources leading to lower profit realization. The following findings were identified to overcome the unconstrained resource situation such as identifying the work front, adopting pull planning approach, creating a common resource pool, and allotting it on a rental basis. On the contrary, resource-constrained situation faces the issues of prioritization of resources, coordination, communication, collaboration, quality issues, and rework. The findings suggest the strategies such as top-up via subcontracting, proactive pull planning, introducing buffers, training the culture of the organization towards better communication, coordination, and collaboration, to improve the reliability of achieving baseline project performances. Various multiproject aspects suggested for effective management. The identified problems, practices, and various multiproject aspects are expected to contribute better management of multiproject resource unconstrained and constrained project scheduling. |
| format | Article |
| id | doaj-art-ceb1a26683b8470b8ccb0db0d48b309f |
| institution | OA Journals |
| issn | 1687-8086 1687-8094 |
| language | English |
| publishDate | 2018-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Advances in Civil Engineering |
| spelling | doaj-art-ceb1a26683b8470b8ccb0db0d48b309f2025-08-20T02:19:30ZengWileyAdvances in Civil Engineering1687-80861687-80942018-01-01201810.1155/2018/95792739579273Resource Unconstrained and Constrained Project Scheduling Problems and Practices in a Multiproject EnvironmentMarimuthu Kannimuthu0Palaneeswaran Ekambaram1Benny Raphael2Ananthanarayanan Kuppuswamy3Department of Civil and Construction Engineering, Swinburne University of Technology, Melbourne, VIC 3122, AustraliaDepartment of Civil and Construction Engineering, Swinburne University of Technology, Melbourne, VIC 3122, AustraliaDepartment of Civil Engineering, Indian Institute of Technology Madras, Chennai 600036, IndiaDepartment of Civil Engineering, Indian Institute of Technology Madras, Chennai 600036, IndiaConstruction companies execute many projects simultaneously. In such situations, the performance of one project may influence the others positively or negatively. Construction professionals face difficulties in managing multiple projects in limited resource situations. The purpose of this study is to identify the problems in multiproject scheduling from the practitioner’s perspective and to discover current practices under resource unconstrained and constrained settings. The specific objectives are (1) determining the most challenging issues being faced in handling multiproject environment, (2) enumerating the practices adopted in the industry, and finally (3) identifying the practitioners' perceptions on the multiproject scheduling aspects such as network modeling approaches; activity execution modes; concept of sharing, dedicating, and substituting resources; centralized and decentralized decision-making models; solution approaches; and tools and techniques. An online questionnaire survey was conducted to address the objectives above. The top challenging issues in managing multiproject environment are identified. Factor analysis identified the factors by grouping the variables (a) decision-related, (b) project environment-related, (c) project management-related, and (d) organization-related factors. Resource-unconstrained situation mainly faces the issue of underutilization and wastage of resources leading to lower profit realization. The following findings were identified to overcome the unconstrained resource situation such as identifying the work front, adopting pull planning approach, creating a common resource pool, and allotting it on a rental basis. On the contrary, resource-constrained situation faces the issues of prioritization of resources, coordination, communication, collaboration, quality issues, and rework. The findings suggest the strategies such as top-up via subcontracting, proactive pull planning, introducing buffers, training the culture of the organization towards better communication, coordination, and collaboration, to improve the reliability of achieving baseline project performances. Various multiproject aspects suggested for effective management. The identified problems, practices, and various multiproject aspects are expected to contribute better management of multiproject resource unconstrained and constrained project scheduling.http://dx.doi.org/10.1155/2018/9579273 |
| spellingShingle | Marimuthu Kannimuthu Palaneeswaran Ekambaram Benny Raphael Ananthanarayanan Kuppuswamy Resource Unconstrained and Constrained Project Scheduling Problems and Practices in a Multiproject Environment Advances in Civil Engineering |
| title | Resource Unconstrained and Constrained Project Scheduling Problems and Practices in a Multiproject Environment |
| title_full | Resource Unconstrained and Constrained Project Scheduling Problems and Practices in a Multiproject Environment |
| title_fullStr | Resource Unconstrained and Constrained Project Scheduling Problems and Practices in a Multiproject Environment |
| title_full_unstemmed | Resource Unconstrained and Constrained Project Scheduling Problems and Practices in a Multiproject Environment |
| title_short | Resource Unconstrained and Constrained Project Scheduling Problems and Practices in a Multiproject Environment |
| title_sort | resource unconstrained and constrained project scheduling problems and practices in a multiproject environment |
| url | http://dx.doi.org/10.1155/2018/9579273 |
| work_keys_str_mv | AT marimuthukannimuthu resourceunconstrainedandconstrainedprojectschedulingproblemsandpracticesinamultiprojectenvironment AT palaneeswaranekambaram resourceunconstrainedandconstrainedprojectschedulingproblemsandpracticesinamultiprojectenvironment AT bennyraphael resourceunconstrainedandconstrainedprojectschedulingproblemsandpracticesinamultiprojectenvironment AT ananthanarayanankuppuswamy resourceunconstrainedandconstrainedprojectschedulingproblemsandpracticesinamultiprojectenvironment |