M ANUAL
FOR
M AINSTREAMING DRR/CCA
IN
P ROVINCIAL D EVELOPMENT
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P HYSICAL F RAMEWORK P LANS
susceptible areas, compute for the consequence by multiplying the unit cost with the factor of damage for frequent events. Do the same with the other hazard occurrences (likely and rare) using the corresponding factor of damage (refer to table H-18). The consequence will be expressed as unit value in Philippine Pesos. 10.Input the return period per hazard occurrence. Make a batch edit of all return period fields per hazard occurrence. 11.Compute for the first incremental risk (frequent-likely) by using the field calculator (refer to table H-19) and using the computation syntax: [ConsqLike]*((1/ [RpFreq])-(1/ [RpLike]))
12.Compute for the second incremental risk f(frequent-likely) by using the field calculator and using the computation syntax: [ConsqRare] *((1/ [RpLike] )-(1/ [RpRare]))
13.C o m p u t e f o r t h e s u m o f a l l incremental risk in the CITotRisk field by adding the two incremental risk fields.
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[IncRiskFL]+[IncRiskLR] 14.The estimated annualized risk are computed per critical facility and can be aggregated to the municipal level in the succeeding steps. The estimated risk shall be combined with the built-up and lifeline utilities risk to determine the total urban risk per municipality. Aggregate critical point facilities risk estimates to the municipal level 15.Summarize the risk estimates for the critical point facilities. Open the attribute table, then right click any field. Select the summarize table function. Select MunName as the f i e l d t o s u m m a r i z e , c re a t e a statistical sum of the CITotRisk field. This operation will sum all the estimated risk of all points at the municipal level.Save your summary table as CI_Risk_Munilevel_(Hazard type)_province.dbf. This table will be fur ther combined to the Risk prioritization dataset where the total critical infrastructure risk will be combined to the built-up and lifeline utilities computed risk. 16.Proceed with risk estimation for lifeline utilities.