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A DOSE to compare the level of performance between construction projects

Teshale Teshome Alemu
Teshale Teshome Alemu
 und 
Mohindra Singh Thakur
Mohindra Singh Thakur
   | 31. Dez. 2022
Organization, Technology and Management in Construction: an International Journal's Cover Image
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Article Category: Research Paper
Online veröffentlicht: 31. Dez. 2022
Seitenbereich: 2760 - 2768
Eingereicht: 09. Mai 2022
Akzeptiert: 10. Nov. 2022
DOI: https://doi.org/10.2478/otmcj-2022-0017
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© 2022 Teshale Teshome Alemu et al., published by Sciendo
This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.

Fig. 1

The data analysis flow diagram developed using the impact interval defined by Fashina et al. (2021). RII, relative importance index.
The data analysis flow diagram developed using the impact interval defined by Fashina et al. (2021). RII, relative importance index.

Fig. 2

The aggregate impact of construction delay, cost overrun and quality factors in the case of Denmark, Nigeria and Gaza Strip.
The aggregate impact of construction delay, cost overrun and quality factors in the case of Denmark, Nigeria and Gaza Strip.

The impact interval defined by Kazaz et al. (2012)

Impact intervals Given name
0.00–0.80 Not important
0.81–1.60 Somewhat important
1.61–2.40 Important
2.41–3.20 Very important
3.21–4.00 Extremely important

Major quality factors and their aggregate impact in Denmark

Country The major quality factors RII
Denmark *Errors or omissions in construction work 0.688
*Inexperienced or newly qualified consultants 0.678
*Political focus on reduced project costs or time 0.644
*Unsettled or lack of project planning 0.642
*Errors or inconsistencies in project documents 0.641
Aggregate RII 0.659

Major delay factors and their aggregate impact in Denmark

Country The major delay factors RII
Denmark *Unsettled or lack of project funding 0.774
*Delayed or long process times by other authorities 0.739
*Unsettled or lack of project planning 0.712
*Errors or omissions in construction work 0.694
*Lack of identification of needs 0.690
Aggregate RII 0.722

The aggregate impacts of the three variables (MDF, MCF and MQF) and their impact intervals for the selected countries

Countries Aggregate RII of MDF Impact interval Aggregate RII of MCF Impact interval Aggregate RII of MQF Impact interval
Denmark 0.722 (0.60–0.8] 0.721 (0.60–0.8] 0.659 (0.60–0.8]
Gaza Strip 0.902 (0.80–1.0] 0.856 (0.8–1.0] 0.851 (0.80–1.0]
Nigeria 0.87 (0.8–1.0] 0.8503 (0.8–1.0] 0.7932 (0.60–0.8]

The major construction delay, cost overrun and quality factors and their associated RII, average RII and aggregate RII in the case of Nigeria

Country RII in the view of different stakeholders Average RII (%)
Architect's Engineer's Surveyor's Builder's
Nigeria Major quality factors
Poor quality of materials delivered to site 82.4 84.55 85.00 81.82 83.44
Low level of skill and labour experience 80.74 78.18 70.00 81.82 77.69
Poor inspection and testing 79.29 80.91 85.00 82.22 81.86
Poor site installation procedure 79.29 69.09 82.50 74.55 76.36
Lack of quality assurance 75.71 73.36 80.00 80.00 77.27
Aggregate RII 79.32
Major delay factors RII (%)
Cash flow problem 90
Shortage of construction materials 89
Client's financial difficulty 86
Inadequate consultant experience 85
Incompetent project team 85
Aggregate RII 87
Major cost overrun factors RII (%)
Risk and uncertainty related factors 89.5
Lack of financial power of client 88.5
Weak regulation and control 88.2
Corruption 82.6
Variation of prices 81.3
Indiscriminate change in design/work 80.1
Aggregate RII 85.03

The impact interval defined by Fashina et al. (2021)

Impact intervals Given name
[0.0–0.2] Very low
(0.2–0.4] Low
(0.4–0.6] Average
(0.6–0.8] High
(0.8–1.0] Very high

The major construction delay, cost overrun and quality factors and their associated average and aggregate importance index in Gaza Strip

Owner Consultant Contractor Overall
Country The major delay factors RII
Gaza Strip *Average delay because of closures leading to materials shortage 0.941 0.896 0.943 0.927
*Unavailability of resources as planned through the project duration 0.871 0.858 0.904 0.878
Aggregate RII 0.902
The major cost overrun factors
*Escalation of material prices 0.847 0.832 0.889 0.856
Aggregate RII 0.856
The major quality factors
*Unavailability of personals with high experience and qualification 0.859 0.848 0.865 0.857
*Quality of equipment and raw materials in project 0.835 0.84 0.861 0.845
Aggregate RII 0.851

Major cost overrun factors and their aggregate impact in Denmark

Country The major cost overrun factors RII
Denmark *Errors or omissions in the consultant material 0.766
*Errors or inconsistencies in project documents 0.726
*Late user changes affecting the project or function 0.717
*Lack of preliminary examination before design or tendering 0.700
*Inexperienced or newly qualified consultants 0.698
Aggregate RII 0.721
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