| No. | Risk statement | Mean | Std. Dev | RII (%) | T value |
P value Sig. |
Rank |
|---|---|---|---|---|---|---|---|
| Physical factors | |||||||
| Ri1 | Occurrence of accidents and poor safety procedures. | 3.68 | 1.23 | 73.67 | 4.31 | 0.000 | 1 |
| Ri2 | Supplies of defective materials. | 3.02 | 1.16 | 60.33 | 0.11 | 0.912 | 2 |
| Ri3 | Environmental disasters. | 3.02 | 1.17 | 60.33 | 0.11 | 0.913 | 3 |
| Ri4 | Adverse weather conditions. | 2.72 | 1.04 | 54.33 | 2.10 | 0.040 | 4 |
| Design factors | |||||||
| Ri5 | Defective design (incorrect). | 2.90 | 1.34 | 58.00 | 0.58 | 0.564 | 4 |
| Ri6 | Not coordinated design (mechanical, electrical, etc). | 2.85 | 1.02 | 57.00 | 1.14 | 0.260 | 5 |
| Ri7 | Urgent design. | 3.23 | 0.96 | 64.67 | 1.88 | 0.066 | 2 |
| Ri8 | Awarding the design to an unqualified Designer. | 3.32 | 1.17 | 66.44 | 2.12 | 0.038 | 1 |
| Ri9 | Unrealistic client expectations regarding project time, cost or quality. | 3.17 | 1.17 | 63.33 | 1.11 | 0.273 | 3 |
| Logistic factors | |||||||
| Ri10 | Labor, material and equipment | 3.28 | 1.15 | 65.67 | 1.91 | 0.061 | 5 |
| Ri11 | Weak human and financial resources | 3.18 | 1.13 | 63.67 | 1.26 | 0.213 | 6 |
| Ri12 | Lack of availability of required equipment | 3.15 | 1.15 | 63.00 | 1.01 | 0.315 | 8 |
| Ri13 | Competitive tenders | 3.37 | 1.10 | 67.33 | 2.57 | 0.013 | 3 |
| Ri14 | Delayed payment on contract | 3.17 | 1.21 | 63.33 | 1.07 | 0.290 | 7 |
| Ri15 | Financial failure | 3.37 | 1.15 | 67.33 | 2.47 | 0.016 | 4 |
| Ri16 | Unexpected delay in construction material arrival | 3.45 | 1.00 | 69.00 | 3.49 | 0.001 | 2 |
| Ri17 | Unexpected change in currency and material prices | 3.50 | 0.95 | 70.00 | 4.09 | 0.000 | 1 |
| Legal factors | |||||||
| Ri18 | Non-compliance with the laws governing the work | 3.22 | 1.15 | 64.33 | 1.46 | 0.150 | 3 |
| Ri19 | Claims and disputes between parts of project | 3.18 | 1.11 | 63.67 | 1.28 | 0.207 | 4 |
| Ri20 | Delayed dispute resolution | 3.23 | 1.08 | 64.67 | 1.67 | 0.099 | 2 |
| Ri21 | There is no specific committee to solve the disputes | 2.97 | 1.15 | 59.33 | 0.22 | 0.823 | 7 |
| Ri22 | The lowest prices without regard to the efficiency and quality of work. | 3.58 | 1.27 | 71.67 | 3.57 | 0.001 | 1 |
| Ri23 | The gap between the implementation process and the required specifications due to lack of clarity of diagrams and technical conditions | 3.07 | 1.09 | 61.33 | 0.47 | 0.637 | 6 |
| Ri24 | No documentation of changes orders | 3.17 | 1.14 | 63.33 | 1.13 | 0.261 | 5 |
| Technical factors | |||||||
| Ri25 | Limitation in business quality and time limits | 3.08 | 1.06 | 61.67 | 0.61 | 0.546 | 2 |
| Ri26 | Change in designs and technical specifications V.O | 3.02 | 1.00 | 60.33 | 0.13 | 0.898 | 3 |
| Ri27 | Security, safety and environmental factors | 3.32 | 1.10 | 66.33 | 2.24 | 0.029 | 1 |
| Ri28 | The error in estimating the quantities required | 3.02 | 1.00 | 60.33 | 0.13 | 0.898 | 4 |
| Political factors | |||||||
| Ri29 | Work in the hot border areas between the Gaza Strip and the Israeli occupation army headquarters | 3.64 | 1.35 | 72.88 | 3.67 | 0.001 | 3 |
| Ri30 | Lack of security stability | 3.60 | 1.24 | 72.00 | 3.75 | 0.000 | 4 |
| Ri31 | Close of the crosses and siege | 3.98 | 1.11 | 79.67 | 6.85 | 0.000 | 1 |
| Ri32 | Lack of raw materials in markets due to political conditions | 3.87 | 1.19 | 77.33 | 5.66 | 0.000 | 2 |
| Management factors | |||||||
| Ri33 | Lack of proper resource management. | 3.68 | 1.07 | 73.67 | 4.97 | 0.000 | 1 |
| Ri34 | Change in the administrative structure of the project. | 3.20 | 1.02 | 64.00 | 1.52 | 0.135 | 4 |
| Ri35 | Lack of efficient management. | 3.37 | 1.22 | 67.33 | 2.33 | 0.023 | 2 |
| Ri36 | Uncooperative managers and slow decision-making. | 3.25 | 1.05 | 65.00 | 1.84 | 0.071 | 3 |
| Ri37 | Effectiveness of communication among stakeholders. | 3.12 | 0.94 | 62.33 | 0.96 | 0.341 | 6 |
| Ri38 | Lack of communication and coordination between the parties to the project. | 3.17 | 1.14 | 63.33 | 1.13 | 0.261 | 5 |
| - | All statements | 3.27 | 0.75 | 65.40 | 2.71 | 0.009* | - |