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 2011 2012 2013 2014 2015 Factor to adjust to July 2016 1.05 1.03 1.03 1.01 1.01 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 Crash 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 2015 July 2015 July 2002 July 2002 July 2008 July 2008 July 2008 Factor to adjust to July 2016 1.45 0.98 1.03 1.45 1.45 1.17 1.17 1.17 __________________________________________________________________________________________________ The NZ Transport Agency’s Economic evaluation manual (volume 1) First edition, Amendment 1 Effective from 1 January 2013
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