OPTIMIZING ROUTING OF MUNICIPAL SOLID WASTE COLLECTION VEHICLES IN DEIR EL-BALAH – GAZA STRIP

Salah R. Agha

Abstract


Solid waste collection routing is one of the main components
of solid waste management. Despite the fact that the collection process
constitutes 74% of solid waste management cost, it has been given little
attention. The collection process becomes more serious especially in the hot
and arid seasons in Gaza. This research optimizes the routing system for Deir
El-Balah, Gaza Strip, using Mixed Integer-Programming (MIP) model. The
model minimizes the total distance traveled by the collection vehicles. Results
show that the application of the model improves the collection system by
reducing the total distance by 23.47% thus saving around US$1140 per
month. Given the fact that most local authorities are financially weak, the
resulting savings are so significant. The large savings may be attributed to the
fact that in most developing countries, scientific tools of decision making and
performance analysis are hardly used. It is recommended that the model be
applied and implemented in other municipalities, thus several thousands of
dollars can be saved every month.

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