| dc.description.abstract | Living standard in Ho Chi Minh city has risen rapidly in recent years, so that quantity
of municipal solid waste in this area has grown rapidly. According to Department of
Natural resources and Environment of Ho Chi Minh city, the average quantity of
garbage is up to 9.000-11.000 tons daily and the rate of generated waste is approximately
10% per year. However, some areas in Ho Chi Minh city have faced difficulties in
utilizing current resources effectively and limitations in facilities. As a result, this study
applied the simulation method to evaluate the current waste collection and transportation
systems in three neighboring districts and then suggested some feasible solutions to
reduce the problems. Additionally, our research used generated datasets in scenarios
such as holiday season or in the long-term vision to appraise the usability of this system.
With the application of discrete-event simulation technique, the model revealed the
issues that some routes exceed the time windows and the congestion occurred at transfer
station especially the one located in Tan Binh. When running the model in datasets of
holiday and future scenarios, the challenges rose rapidly and the resources did not meet
all demands. This paper recommended some solutions such as improving transfer station
status to boost efficiency, and sharing resources with other districts to ease the
problematic situation and used Multi-criteria decision making to consider them under
many factors including operational cost, feasibility, long-term usability and
effectiveness. It is concluded that conducting a signal system between garbage trucks
and transfer stations among three adjacent districts showed the best result which not
only utilizes the existing resources more effectively in multiple aspects but also reduces
the problems remarkably. | en_US |
