caused my heatwaves - sensitivity of results over a large range should be tested (+/- 50%) Urban cooling - avoided cost $0.24 per residence - apply if LRMC approach not energy savings per degree above 20 applicable degrees per day - apply to each degree of urban cooling produced on each day above 20 degrees - sensitivity of results over a large range should be tested (+/- 50%) Flood damage externalities summary Valuation Benefit approach Value Factors to consider when applying: Approx. $1,000 per building cm of - to residential flooding only height reduced for - requires technical modelling to estimate damage - flooding greater change in flood height from IWCM option residential avoided than 10cm below - sensitivity of results over a large range buildings cost floor level should be tested (+/- 50%) - $14.35 per hour of disruption per vehicle occupant for private travel - requires an assessment of impact of lost - $45.90 per hour of travel time and traffic flows as a result of impacts disruption per floods - car willingness vehicle occupant for - sensitivity of results over a large range transport to pay business travel should be tested (+/- 50%)
caused my heatwaves - sensitivity of results over a large range should be tested (+/- 50%) Urban cooling - energy savings avoided cost $0.24 per residence per degree above 20 degrees per day - apply if LRMC approach not applicable - apply to each degree of urban cooling produced on each day above 20 degrees - sensitivity of results over a large range should be tested (+/- 50%) Flood damage externalities summary Benefit Valuation approach Value Factors to consider when applying: damage - residential buildings avoided cost Approx. $1,000 per building cm of height reduced for flooding greater than 10cm below floor level - to residential flooding only - requires technical modelling to estimate change in flood height from IWCM option - sensitivity of results over a large range should be tested (+/- 50%) impacts - car transport willingness to pay - $14.35 per hour of disruption per vehicle occupant for private travel - $45.90 per hour of disruption per vehicle occupant for business travel - requires an assessment of impact of lost travel time and traffic flows as a result of floods - sensitivity of results over a large range should be tested (+/- 50%)
18-01-12_Valuing-externalities_FINAL_updated-contact.docx