Research Article
The Use of Project Time Management Processes and the Schedule Performance of Construction Projects in Mexico
Table 6
Mean SPI values obtained for different periods of time.
| Projects | Performance at project completion | Mean SPI values | 4th week | 8th week | 12th week | Last week |
| 1 | Delayed | 0.33 | 0.50 | 0.61 | 0.65 | 2 | On time | 1.00 | 1.00 | 1.00 | 1.00 | 3 | Delayed | 0.88 | 0.92 | 0.94 | 0.93 | 4 | Delayed | 0.20 | 0.41 | 0.59 | 0.65 | 5 | Delayed | 0.85 | 0.94 | 0.96 | 0.92 | 6 | On time | 1.00 | 1.00 | 1.00 | 1.00 | 7 | On time | 1.00 | 0.90 | 0.93 | 0.94 | 8 | On time | 1.00 | 1.00 | 0.98 | 0.99 | 9 | Delayed | 0.68 | 0.78 | 0.86 | 0.88 | 10 | Delayed | 0.36 | 0.80 | 0.91 | 0.87 | 11 | On time | 1.00 | 1.00 | 1.00 | 1.00 | 12 | Delayed | 0.28 | 0.37 | 0.53 | 0.62 | 13 | On time | 0.67 | 0.58 | 0.62 | 0.68 | 14 | On time | 0.59 | 0.69 | 0.76 | 0.79 |
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Projects that were granted an extension of time.
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