Saudi Arabia has been facing issues with completing construction projects on time and on budget. It has been documented that 70% of public construction projects are delayed. A case study was performed, at a University campus in northern Saudi Arabia, identifying the major causes of project delays. The University was experiencing delays from 50% to 150%. The delay factors were gathered from the University Projects Director and five engineers. The University delay factors were then compared to delay factors experienced on Saudi construction projects, identified by performing a literature research. The comparison identified nine causes of delays that both studies documented. The study also proposes a solution to minimize the nine major delay factors. A literature research identified one construction management method, the Performance Information Procurement System (PIPS), has documented multiple times its ability to improve project performance and minimize delays.
This paper presents a literature research assessing the performance and issues of delivering construction services worldwide, by exploring reasons for delays and increased construction costs. The study shows a comparison of the performance of the construction industry between different continents and countries. Multiple research databases were looked through and performance information was taken from over 95 publications. The results reveal that although the construction industry is growing throughout the world, there are many of the same problems being experienced in delivering construction projects in developing countries and developed countries. The literature reveals that all countries and continents are experiencing the same issues. On average, 72% of projects are delayed with 38% increase in original contracted duration, also, 63% of projects experienced cost overruns with 24% increase in original contracted cost. Additionally, rework is also a factor that affects performance and accounts for 6% increase in total project costs. Customer satisfaction on projects is low, and 90% of all major issues causing non-performance are due to people. A best value approach was identified as a potential solution to overcome the poor performance on construction projects with the following results: tested over 1900 times, totaling over $6B of procured services, a 94% on time and 97% on budget, and 98% customer satisfaction.
The Dallas Independent School District (DISD) has utilized Alpha sprayed polyurethane (SPF) roof systems since the 1980s. Alpha SPF roof systems are high performing roof systems if installed properly and are very resistant to hail damage (hail damage is significant in the Dallas area). However, DISD, due to their low bid award procurement system, have had some poor performing roof systems installed by contractors who did not utilize performing materials and processes. The Alpha SPF roof system is now being questioned by designers who are not aware of their high performance and wanted to tear-off one of the oldest SPF roofing systems after a hail storm. This case study is on one of DISD roofs which were studied to determine the actual and potential service period based on actual performance. It was concluded that the roof is capable of lasting another 15 more years with a simple recoat (resulting in 38 years of performance at a fraction of the cost of a traditional modified roof).
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