Supply chain management and lean concept in construction: a case of Ghanaian building construction industry
31 gru 2019
O artykule
Kategoria artykułu: Research Paper
Data publikacji: 31 gru 2019
Zakres stron: 2034 - 2043
Otrzymano: 11 lip 2019
Przyjęty: 28 lis 2019
DOI: https://doi.org/10.2478/otmcj-2019-0010
Słowa kluczowe
© 2019 Ali Boateng, published by Sciendo
This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.
Characteristics of case projects
| Construction of 4-Storey Examination Block | 5,500,000 | Berock Ventures Limited |
| Construction of 4-Storey N-Block for the College of Engineering | 6,200,000 | Berock Ventures Limited |
| Construction of VIP Ward for KNUST Hospital | 2,200,000 | Stivo Company Limited |
| Construction of 3-Storey Computer Laboratory and Canteen Block for KNUST JHS | 1,500,000 | Asib Company Limited |
Level of coordination and collaboration among industry players
| Consultants | 63 | 4.48 | 0.602 | 0.131 |
| Subcontractors | 63 | 3.90 | 0.944 | 0.206 |
| Major suppliers | 63 | 4.14 | 0.910 | 0.199 |
| Clients | 63 | 4.67 | 0.483 | 0.105 |
Coordination in planning of activities
| Consultants | 63 | 4.57 | 0.746 | 0.163 |
| Subcontractors | 60 | 3.65 | 1.137 | 0.254 |
| Major suppliers | 60 | 3.30 | 1.380 | 0.309 |
| Clients | 60 | 4.20 | 1.005 | 0.225 |
Respondents information
| Profession of respondents | ||
| Quantity surveyor | 24 | 38 |
| Architect | 24 | 38 |
| Engineer | 3 | 5 |
| Project manager | 12 | 19 |
| Total | 63 | 100 |
| Academic qualification | ||
| MSc/MPhil/MTech | 25 | 40 |
| BSc/BEng/BTech | 36 | 57 |
| HND | 2 | 3 |
| Total | 63 | 100 |
| Years of experience | ||
| Below 5 years | 2 | 3 |
| 5–10 years | 18 | 29 |
| 10–15 years | 19 | 30 |
| 15–20 years | 12 | 19 |
| Above 20 years | 12 | 19 |
| Total | 63 | 100 |
Sources of waste
| A | Delays in arrival of workers, plant and materials | 63 | 3.7619 | 0.70034 | 0.15283 |
| B | Slow decision-making and instructions by consultants | 63 | 3.6190 | 0.74001 | 0.16148 |
| C | Waste of materials | 63 | 3.5238 | 0.74960 | 0.16358 |
| D | Shortage of materials | 63 | 3.5238 | 0.87287 | 0.19048 |
| E | Inefficient movement of workers | 63 | 3.3810 | 0.80475 | 0.17561 |
| F | Poorly scheduled delivery of materials to site | 63 | 3.2857 | 0.84515 | 0.18443 |
| G | Accidents | 63 | 3.2381 | 0.62488 | 0.13636 |
| H | Excess materials in store | 63 | 3.1905 | 0.92839 | 0.20259 |
| I | Waiting and idling | 63 | 3.1905 | 0.92839 | 0.20259 |
| J | Double handling of materials | 63 | 3.1429 | 0.91026 | 0.19863 |
| K | Use of materials over and above specifications | 63 | 3.1429 | 0.96362 | 0.21028 |
| L | Deterioration of materials | 63 | 3.0952 | 0.76842 | 0.16768 |
| M | Rework | 63 | 3.0476 | 0.80475 | 0.17561 |
| N | Unnecessary or not enough information flow | 63 | 3.000 | 0.89443 | 0.19518 |
| O | Waste of space on-site | 63 | 2.9524 | 0.74001 | 0.16148 |
| P | Defects | 63 | 2.9524 | 0.74001 | 0.16148 |
| Q | Work not done | 63 | 2.9524 | 0.86465 | 0.18868 |
| R | Over allocation of materials to an activity | 63 | 2.9524 | 0.97346 | 0.21243 |
| S | Unnecessary work | 63 | 2.9048 | 0.88909 | 0.19401 |
| T | Poor quality of materials | 63 | 2.8571 | 0.79282 | 0.17301 |
| U | Poor storage of materials | 63 | 2.8095 | 0.74960 | 0.16358 |
| V | Workers performing activities well below their capabilities | 63 | 2.8095 | 0.87287 | 0.19048 |
| W | Abnormal use of equipment and tools | 63 | 2.7143 | 0.84515 | 0.18443 |
| X | Inadequate storage spaces | 63 | 2.7143 | 0.84515 | 0.18443 |
Communication and information sharing
| Consultants | 57 | 4.68 | 0.478 | 0.110 |
| Subcontractors | 60 | 4.30 | 0.571 | 0.128 |
| Major suppliers | 60 | 4.25 | 0.550 | 0.123 |
| Clients | 63 | 4.43 | 0.746 | 0.163 |