Quantitative Analysis of the Sources of Construction Waste
Table 2
Severity of contribution of the sources of construction waste.
Sources of construction waste Severity: please rate the following sources of waste according to the degree of their contribution to construction material waste (1 being no contribution and 5 being extreme contribution)
Sources of waste
Contribution rate
None
Little
Moderate
Great
Extreme
1
2
3
4
5
(a) Procurement such as ordering error and supplier’s error due to inaccurate data
□
□
√
□
□
(b) Design such as changes to design and contract document errors
□
□
□
√
□
(c) Materials handling such as damage during transportation, off-loading, on-site distribution, and inappropriate storage
□
□
□
√
□
(d) Operation such as tradesperson’s error and equipment malfunction
□
□
√
□
□
(e) Damage due to weather such as temperature and humidity
□
□
□
√
□
(f) Security such as damage on construction site due to vandalism
□
□
□
√
□
(g) Materials misplacement on site
□
□
√
□
□
(h) Residual such as off-cuts from cutting materials to length and packaging
□
□
□
√
□
(i) Others such as lack of site materials control and waste management plans
