Fair Budgeting Formulation for O&M of Irrigation Using Multi-Criteria Decision Analysis: WA and AHP Methods

Abstract: Operation  and  Maintenance  (O&M)  budget  provided  by  the  Government  of  Indonesia  for  irrigation,  so  far, is based on the size of irrigated area only. Meanwhile, the actual O&M costs of an irrigation area also depend on the  topographic  terrain,  canal  density/length,  irrigation  structure  density,  and  infrastructure  damages  that  influ-ence to the proper function of irrigation system. Thus, the O&M budget does not represent the actual cost needed. The  purpose  of  this  study  is  to  find  method  for  fair  budgeting  O&M  irrigations  based  on  Multi-Criteria  Decision Analysis  (MCDA):  Weighted  Average  (WA)  and  Analytic  Hierarchy  Process  (AHP)  methods.  As  case  study,  the  methods  are  applied  on  nine  irrigation  areas  with  various  topographical  conditions.  The  results  are  then  compared  with  the  conventional  O&M  budget.  Four  criteria  are  used  to  assess  the  irrigation  areas  above:  canal density/length (m/ha), structure density (per hectare), infrastructure damages (%), and size of the irrigation area. The  result  shows  that  O&M  budgeting  using  WA  and  AHP  methods  gives  more  fairness  and  closer  to  the  actual budget  needed,  compared  with  the  government  budgeting  that  based  on  the  size  of  irrigation  area  only.  While  in general, result using AHP method tends to be more sensitive than that using WA method.
Keywords: Fair Budgeting, Irrigation O&M, MCDA, AHP
Author: Edy Anto Soentoro, Faizal I.W. Rohmat, Vitta Vurnamawati
Journal Code: jptsipilgg140002

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