Barrier

References

1

Lack of Timely Information

The process is not automated hence cannot facilitate real-time progress measurement and it is also time-consuming.

· Behnam et al. (2016) [5]

· Cheung et al. (2004) [6]

· Golparvar-Fard (2010) [8]

· Navon and Sacks (2007) [9]

· Neely (1999) [10]

2

Laborious Data Gathering

Manual data collection and extraction, as well as tedious calculations, make the process operose, inaccurate and steep.

· Davidson and Skibniewski (1995) [11]

· Ergen et al. (2007) [12]

· Ibrahim et al. (2009) [13]

· Meredith and Mantel (2003) [14]

· Navon (2007) [7]

3

Variable Quality of Data

Different units of measurement employed impacting on duration and accuracy of procession.

· Eldin (1989) [15]

· Golparvar-Fard (2010) [8]

· Navon and Sacks (2007) [9]

· Rebolj et al. (2008) [16]

4

Fixation on Time Data

Using time data only in computing progress.

· Eldin (1989) [15]

· Mubarak (2010) [2]

5

Fixation on Cost Data

Using cost data only in computing progress.

· Eldin (1989) [15]

· Mubarak (2010) [2]

6

Intricate Measurement Reports

Difficulty in generating structured work breakdown to facilitate activity measurement and easy visualization of progress monitoring reports.

· Eldin (1989) [15]

· Kaka (1999) [17]

· Kerzner (2009) [18]

· Chin et al. (2006) [19]

· Jung and Kang (2007) [20]

7

Reliance on Supervisor’s Judgement

Dependence on the opinion of supervisors not grounded on firm data.

· AACE International (2019) [22]

· Chin et al. (2006) [19]

· Golparvar-Fard et al. (2009) [23]

· Mubarak (2010) [2]

8

Quality Integration Constraint

Difficulty in integrating cost, time and scope of work into the progress measurement.

· Cioffi (2006) [29]

· Eldin (1989) [15]

· Chin et al. (2006) [19]

· Garold (2000) [4]

· Golparvar-Fard et al. (2009) [23]

· Jung and Kang (2007) [20]

9

Generic and Non-Systematic Approach

Method of progress measurement is unspecified in contract documents.

· Golparvar-Fard (2010) [8]

· PPA (2003) [21]

10

Deficient Method Statement

Difficulties in analyzing causes of deviations.

· Amos (2004) [3]