Performance analysis in managing trucks handling export cargo at Suvarnabhumi airport free zone using a simulation model
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Abstract
The purposes of this research are to study and evaluate a performance in managing export cargo trucks at Suvarnabhumi airport free zone as well as to propose an alternative system to reduce a traffic density in the area. Simulation analysis has been used to analyze system performance for both current and proposed systems with the application of the Arena program. Truck arrival rate was collected during May–August, 2018. A sample of 335 trucks were observed and investigated time spent in free zone. The results show that in free-zone, trucks spend 55 minutes in average with a maximum of 138 trucks during 05:00-06:00 pm. However, the use of truck docks is less than 50% most of the time except during 03:00–8:00 pm., in which the use slightly increases but still less than 70% during 06:00–07:00 pm. Waiting time for truck docks is considered very short. This finding reveals that the traffic congestion in free zone is not a result of inadequacy of truck docks. In addition, activities in the service process are analyzed and find that policy shown in the first step does not include all the documents needed for all activities in the whole process. This, therefore, causes a traffic congestion by allowing this type of trucks into the area.
The research proposes an alternative system by requiring all documents needed at first when trucks enter the area. Simulation results of this alternative system show an improvement in the traffic congestion situation. Trucks spend time in the area about 20 minutes less than before as well as a reduction in a number of trucks in the area by more than 30 percent.
Keywords: 1) Simulation 2) Performance 3) Cargo Terminal
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References
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