| Barrier | N | Sum | Mean | Standard Deviation | RII | Ranking |
| Reliance on Supervisor’s Judgement Dependence on the opinion of supervisors not grounded on firm data. | 60 | 294 | 4.90 | 0.303 | 98.0 | 1 |
| Generic and Non-systematic Approach Method of progress measurement is unspecified in contract documents. | 60 | 288 | 4.80 | 0.514 | 96.0 | 2 |
| Variable Quality of Data Different units of measurement employed impacting on duration and accuracy of procession. | 60 | 288 | 4.80 | 0.546 | 96.0 | 3 |
| Intricate Measurement Reports Difficulty in generating structured work breakdown to facilitate activity measurement and easy visualization of progress monitoring reports. | 60 | 280 | 4.67 | 0.510 | 93.3 | 4 |
| Lack of Timely Information The process is not automated hence cannot facilitate real-time progress measurement and it is also time-consuming. | 60 | 261 | 4.35 | 0.732 | 87.0 | 5 |
| Laborious Data Gathering Manual data collection and extraction, as well as tedious calculations, make the process operose, inaccurate and steep. | 60 | 246 | 4.10 | 0.543 | 82.0 | 6 |
| Quality Integration Constraint Difficulty in integrating cost, time and scope of work (quality) into the progress measurement. | 60 | 241 | 4.02 | 0.892 | 80.3 | 7 |
| Frequent Variation in Work Changing nature of work necessitating corrective measures. | 60 | 231 | 3.85 | 0.659 | 77.0 | 8 |
| Unrealistic Planning Inadequate pre-contract planning resulting in increased scope of effort and extensive as-planned data. | 60 | 223 | 3.72 | 0.804 | 74.3 | 9 |
| Deficient Method Statement Difficulties in analyzing causes of deviations. | 60 | 212 | 3.53 | 0.812 | 70.7 | 10 |
| Extension of Time Measurements related to time are muddled when time changes. | 60 | 196 | 3.27 | 0.710 | 65.3 | 11 |
| Fixation on Time Data Using time data only in computing progress. | 60 | 195 | 3.25 | 0.751 | 65.0 | 12 |
| Fixation on Cost Data Using cost data only in computing progress. | 60 | 195 | 3.25 | 0.751 | 65.0 | 13 |
| Contentious Claims Non-defined work scope and responsibilities, and poor documentation. | 60 | 171 | 2.85 | 0.954 | 57.0 | 14 |
| Delays and Disruptions Progress measurement becomes distorted whenever work is interrupted and prolonged reports also delay decision making process. | 60 | 160 | 2.67 | 1.052 | 53.3 | 15 |
| Unforeseen Site Conditions The difficulty in taking physical measurement under inclement weather. | 60 | 156 | 2.60 | 0.827 | 52.0 | 16 |