ENHANCING MACHINERY REPAIR MANAGEMENT IN ROAD CONSTRUCTION

Main Article Content

Jittra Rukijkanpanich
Nurainee Prasertdam

Abstract

The delay in repairing heavy machinery may  result in the slow completion of road construction. The objective of this research was to apply the project management approach to the management of heavy machinery repair work in road construction. The main tools were Critical Path Method (CPM), Gantt chart, and S-curve. The study was conducted with the following procedures: 1) collecting the data on failures and causes to determine the repair methods and standard time of repairs, 2) building a database system to facilitate the creation of repair plans, 3) analyzing the repair network activities with CPM, 4) creating Gantt charts to present a plan for each repair, 5) conducting control and monitoring progress by S-curve, 6) if the repair was found to be delayed than planned, countermeasures were required to be following the repair plan. After one year of improvement, the results were evaluated, indicating that inefficient time was eliminated, resulting in reduced downtime e.g. downtime of body system reduced from 75 days to 16, days (78.67%), downtime of engine system reduced from 122 days to 54 days (55.74%). In summary, it would find that when applying the project management to repair work, downtime could be reduced 23.33% to 55.74%

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