Solid Waste Management [SWM] App

22 Mar 2018

 A landfill site in Siem Reap, Cambodia
Use this application to run extensive costing simulations of municipal solid waste management services

Solid waste is challenging in almost every municipalities in Cambodia. Specifically, the challenges was mainly on its proper collection and disposal. Waste collection is becoming a mandate of each municipality to handle from its generation until its final disposal. However, waste collection service is generally entrusted to private contractor and the private contractor run its operation by the revenue collected from customers benefited from the services. With this regard, there is a question on how much it would cost for the solid waste management, in terms of collection and final disposal, for each municipality. To response to the question, UNDP is initiated to create a calculation tool which can be used to forecast the overal cost of waste management in any particular municipality. The tool is developed in the web-based application and hosted for free of usage.

Simulation Model
Collection Level

The model classifies collection service into three levels, (i) Acceptable service, (ii) Better service and (iii) Ideal service. (i) Acceptable service: This level of collection service is to get rid of wastes from coverage service areas in the municipality to landfill. It does not focus much on the discharge behavior, packaging, storage, collection truck apparence, etc. (ii) Better service: This level of collection service is to get rid of wastes from coverage service areas in the municipality to landfill, and to receive good image or appearnace of collection performance. It is to some extend focusing on discharge behavior, packaging, storage, collection truck apparence, more frequent and regular collection. (iii) Ideal service: This level of collection service is to provide a very good collection service in the municipality in terms of regular collection, proper arrangement of waste discharge and collection, collection frequency and equipment use.

Collection coverage

The municipality is generally divided into populated urban area and peri-urban area. The waste collection service is negerally covered only the populated urban area and some part of the peri-urban area, not the entire municipality receive waste collection service. With this current situation, the tool is flexible for the user to border the service area.

Waste generation

Waste generation is estimate based on the unit generation rate from different sources. The number of the generation sources such as restaurant (table), hotel and guesthouse (room), commercial (shop), market (stall), school and university (student), office (office) and public areas are required to inputs into the model. The generation rate per each categories is defaulted into the model.

Equipment and labour requirements

The number of equipment required for operation is authomatically calculated basing on amount of generated wastes and the frequency of collection. The labour for management team is defaultly set to be as a minimum requirement, whereas labour force for collection and cleaning is authomatically calculated based on amount of generated wastes and collection frequency.


The cost is calcuated by taking into account personnel cost, administration cost, truck operation and maintenance cost and expenses on transfer station and landfill operation. The unit rate cost of fuel and labour is defaulted but can be adjusted on the result spreadsheet.

Who should use the model

The model is developed to ease the local authorities, decision or policy makers and waste collection contractors to generate a basic costing of waste management service so that they can plan or manage accordingly.


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