Update Factors 2014 - NZ Transport Agency

A12.2 Update factors for construction and maintenance costs
Cost update factors
The factors for updating construction and maintenance cost estimates
prepared in earlier years are:
Table A12.1: Cost update factors
Calendar year in which estimate
prepared
2009
2010
2011
2012
2013
Factor to adjust to July 2014
1.10
1.08
1.04
1.02
1.02
A12.3 Update factors for benefits
Benefit update factors
The factors for updating the benefit values in this manual are:
Table A12.2: Benefit update factors
Variable
Base Date
TT
Travel time cost savings
VOC
Vehicle operating cost savings
ACC
Accident cost savings
CB
Comfort benefits
DF
Driver frustration
PT
Passenger transport user benefits
WCB
Walking and cycling benefits
TBhC
Travel behaviour change benefits
July 2002
July 2008
July 2006
July 2002
July 2002
July 2008
July 2008
July 2008
Factor to adjust
to July 2014
1.42
1.07
1.24
1.42
1.42
1.14
1.14
1.14
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The NZ Transport Agency’s Economic evaluation manual
Effective from 1 July 2013

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