Time and Cost Variance of Construction Projects Monitored …
209
Table 1 Summary of the
number of analysed
construction projects and
obtained reports
Category
Sector of BIS
projects
Number of
projects
Number of
reports
A
Apartment
houses
14
189
B
Offices
4
58
C
Hotels
9
110
D
Shopping malls
8
113
E
Logistic
warehouses
2
12
F
Health centres
1
12
G
Airport
developments
1
36
H
Production
plants
1
6
A–H
Totals
40
536
out reports has been preceded by internal validation and verification of the coherence
of funds that were indicated by the Bank for financing or refinancing [7].
Therefore, gathered data on finished construction projects is reliable, consistent
and legible. It can be used to extract typological research samples for enterprises
with a similar profile, or to divide them into the categories of construction projects
presented below. Assessments of the cost of construction works recorded in BIS
reports with a number exceeding 100 may as well be extrapolated to homogeneous
populations, which correspond, e.g. to construction sectors in Poland [8].
All the collected data refers to investments implemented and executed in Poland
in the period from 2006 to 2020. The summary of the number of reports obtained
with regards to the category of the building objects A–G has been presented in the
Table 1.
3 BIS and EVM Alliances
Banking Supervision Inspector elaborates documents that enable the mapping and
presentation of the actual progress of the construction process. From the monthly
reports developed by the BIS, information about the progress of works carried out
in individual implementation periods, the values of works carried out in individual
implementation periods, and the values of works carried out cumulatively since the
beginning of the works, etc. was obtained.
As a result of the performed documentation analysis, a collective data summary
was prepared in terms of Earned Value Method (EVM) methodology [9–13]—Fig. 1:
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