Unavailability of professional construction management
6
2.12.9 Construction Delay: Quantitative Analysis
In some studied already done in issue with comstruction management, one of the main objectives of (Al-Momani, 2000) was to figure out the cause and degree of interruptions in public projects in Iran. Some of these studies investigated the causes of these interruptions for about 130 projects, counting office and communication facilities administration buildings residential buildings, schools, medical and centers. The sample population was recognized by choosing 130 ended public projects in diverse areas of Iran among the years of 1990 and 1997. To examine why construction delays and issues occurred, the succeeding statistics were gained from the projects' records:
ae Planned period of contract ae Actual conclusion statistics
ae Design variations
ae Disagreements
ae Warnings
ae Date of notice to continue ae Delays come across throughout construction ae Conflicts connected to the drawings and stipulations ae Time postponements ae Late delivery of material and equipment
As shown in Table 3.4, the incidences for each limit in five dissimilar construction groups were delivered, and numerous projects were behind for numerous reasons. The study establish that the chief causes of postponement were deprived design, change orders, weather, site circumstances, late distribution, financial conditions, and upsurge in quantities. The main reasons of delay discovered in this study were poor design, change order and site and financial situations.
Table 3-4 Summary of the Inspected Projects Occurrence of Delay in Iran
Facility
Type
Poor
Design
No
Delay
Change
Orders
Weather
Increase in Quantity
Late
Delivery
Site
Condition
Economic
Conditions
Total
House
4
3
1
3
2
0
1
0
14
Office
8
5
5
4
5
1
2
4
34
School
10
14
8
6
3
4
5
2
52
Hospital
6
2
4
2
1
3
0
2
20
Roads
4
0
2
1
1
2
0
0
10
Total
32
24
20
19
12
10
8
8
2.13.10 Construction Delay: Developing Economy
(Ogunlan et al. 1996) displayed a certain survey which was able to look at the issues in construction management that were experienced while in the process of constructing high-rise buildings in Iran. Twelve projects were chosen for examination and meetings were presented with their main engineers. Interviews took place right there on the project sites, and a total 20 persons had been questioned, on behalf of 2.4 individuals per project. Candidates were allowable to effortlessly debate the details for their development's breaks and categorize the parties that were complicated. The facts of the origins of interruption can be seen in Table .
3.1 Poor ICT groundwork
If a construction site does not have an extensive and high quality ICT groundwork, it's not likely to exploit ICT power entirely. Some defendants consider that Iran's ICT infrastructure does not really permit them use their ICT devices with the entire volume. For instance internet speed is not really enough to be able have an online meeting by video conference, on the other hand, they could maybe be ready to have some kind video conference if the internet speed is a whole lot better. Furthermore, in some distant construction locations which are out of city parts, there is not much contact to internet. As a result, some innovator construction businesses in ICT who have enormous developments in distant regions, have to capitalize on ICT groundwork merely for that project and this substance forces an excess cost to them. One of the defendants specified "as a group we are driving on the ICT road. it's not conceivable to even drive fast on a road that is stony. If we have made the decision decided to go that route this way, the road should be paved."
3.2 Unacquaintedness of local personnel with ICT in remote construction sites
The staffs who are employed in construction sites are typically in lower level of field associated with office workers and this matter is simple for distant construction sites for the reason that discovering local experts is not continuously conceivable. As a result, the company have to give more to send specialists to distant construction sites. This subject is not cost functioning for small developments for the reason that a small project typically has a small income boundary and it is not defensible to capitalize a lot for sending accomplished...
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