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Materials as a share of the cost of road construction, Australia (2013 survey of road works)
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40.8% of construction cost: Materials as a share of the cost of road construction, Australia (2013 survey of road works) (Bureau of Infrastructure, Transport and Regional Economics (BITRE), 2013 to 2016; Australia; moderate confidence).
What it is. 40.8% of the total cost of road construction work: bituminous materials 12.23%, cement and concrete 4.46%, quarry products 16.16% and reinforcing steel 7.92%.
Sample. Survey of road works by the federal transport research bureau, 2013. Combined construction and maintenance mix: materials 37.06%. Private sector contractors alone: materials 41.01% of road construction and maintenance cost. Subcontract prices are not a separate line in this mix.
What it is not. Context only: how large materials are in the cost of road construction, not the loss from a price rise: no price movement is applied to it. Roads only, 2013 mix. It is not a share of contract value and says nothing about how much of a job is on a fixed price.
Where it came from
- Bureau of Infrastructure, Transport and Regional Economics (BITRE) (2013), BITRE Road Construction and Maintenance Price Index and Sub-Indexes: 2013 update (Information Sheet 49)Appendix B, Table B2, 'All materials', road expenditure weighted column (p.23) · source record
- Bureau of Infrastructure, Transport and Regional Economics (BITRE) (2016), Modelled Road Construction and Maintenance Price Index (Information Sheet 83)p.1 (combined construction and maintenance mix: bituminous 13.7%, cement 4.1%, quarry 13.4%, steel 5.8%) · source record
Considered and set aside
- Australian Bureau of Statistics: Output price of road and bridge construction up 6.0% in the year to September 2026 (index 146.6 to 155.4). A rate of change in what clients pay, not the exposure of a fixed price contract.
- Bureau of Infrastructure, Transport and Regional Economics (BITRE): Same ABS index rose 1.7% in the year to September 2019 against a ten-year average of 2.4%. A price rate, five years stale.
- Bureau of Infrastructure, Transport and Regional Economics (BITRE): Input price index rose 0.49 index points in 2013-14, led by labour and fuel. Index points, not a share of a contract.
- Infrastructure Australia: Industry sentiment puts non-labour input price escalation at about 10-20% over twelve months (p.7). A perception, stated as a range, with no contract exposure attached.
- Infrastructure Australia: 68% of surveyed organisations saw non-labour input costs rise in the last year (p.37). A frequency of perception, not a cost.