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] |