Optimizing a waste collection system with solid waste transfer stations

Ghiani, Gianpaolo; Manni, Andrea; Manni, Emanuele; Moretto, Valentino

doi:10.1016/j.cie.2021.107618

Cited by 15 publications

(7 citation statements)

References 16 publications

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“…Contributing in this way to enrich the scarce literature of tactical planning for these systems and to show the potential benefits that can be achieved using these tools in a real-world application. Moreover, as a second contribution, we evaluate from a tactical point of view the impact of a new WTS in the operation of a real-world company, something that has not been reported before in the literature since previous works focus mainly on WTS location, integrated location-routing studies or vehicle routing problems with synchronization at the WTS (Beliën et al, 2014;Ghiani et al, 2014Ghiani et al, , 2021Sulemana et al, 2018).…”

Section: Literature Reviewmentioning

confidence: 99%

Improving the tactical planning of solid waste collection with prescriptive analytics: a case study

Vargas

Díaz²,

Jaramillo³

et al. 2022

Prod.

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Paper aims: This study presents several business analytics tools that allow improving the tactical planning of the collection process for a Colombian solid-waste management company. Originality:The extant literature of operations research/analytics applied to these systems focuses on facility location or vehicle routing. Tactical decisions are seldom studied in the operations research/analytics literature devoted to waste management systems. By contrast, the focus of this paper is on tactical decisions: fleet sizing, frequency assignment, route scheduling and internal resource allocation in a new waste transfer station. Research method:We follow a multimethodology approach that uses mathematical programming, metaheuristics, and discrete event simulation. The models use historical information of the system, and the solution of a model are used as input data for the other models. Main findings:Introducing a new waste transfer station allows an important reduction of the compactors fleet. However, to prevent a collapse in its internal operation an even operation is needed. This is achieved by rescheduling the routes to balance their arrival during the day. Additional benefits can be attained if some soft constraints are relaxed.Implications for theory and practice: Practitioners looking for tactical planning tools on waste collection systems have here an example of their application and benefits. Improvements can be achieved by tactical planning without heavily disrupting decisions at the operational level.

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Section: Literature Reviewmentioning

confidence: 99%

Improving the tactical planning of solid waste collection with prescriptive analytics: a case study

Vargas

Díaz²,

Jaramillo³

et al. 2022

Prod.

View full text Add to dashboard Cite

show abstract

“…This approach is proposed to reduce the carbon emission produced by utilized trucks as the amount of carbon emission depends on the total loads carried. Due to a stricter regulation forcing new landfills to be located further from the residential areas, Ghiani et al [23] propose a two-echelon waste collection system in which smaller vehicles operate to collect waste from the collection points where waste is generated and transfer the waste to the waste transfer stations before vehicles of a larger capacity pick up the waste at transfer stations. Similarly, Yu et al [24] study a two-echelon waste collection system with a distinctive feature, i.e., considering different types of costs that lead to a multi-objective optimization problem.…”

Section: Literature Reviewmentioning

confidence: 99%

“…Ghiani et al [23] and Yu et al [24] both investigate the waste collection system under a two-echelon structure. This structure is a well-known distribution system invented as a result of the policy for limiting the movement of large vehicles in several cities.…”

Section: Literature Reviewmentioning

confidence: 99%

“…Finally, there are two remaining constraints that are not guaranteed by the abovementioned solution representation: the number of utilized vehicles and the total load assigned to each waste bank. Therefore, the original objective value obtained from the aforementioned procedure f (σ) is modified into ∼ f (σ) by utilizing equation (23) to take into account such violations. In Equation (24), vio veh and vio cap consecutively represent the number of extra vehicles and the total extra load assigned to all waste banks.…”

Section: Evaluation Of the Objective Valuementioning

confidence: 99%

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Using Simulated Annealing to Solve the Multi-Depot Waste Collection Vehicle Routing Problem with Time Window and Self-Delivery Option

Yu,

Jodiawan,

Lin

et al. 2024

Mathematics

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This research introduces the Multi-Depot Waste Collection Vehicle Routing Problem with Time Windows and Self-Delivery Option (MDWCVRPTW-SDO). The problem comes from the waste bank operation implemented in Yogyakarta City, Indonesia. A set of vehicles is dispatched from the waste banks to pick up waste from residents’ locations within the time windows specified by the residents. Residents may be compensated for delivering their waste to a waste bank by themselves. The objective of MDWCVRPTW-SDO is minimizing the sum of investment costs, routing costs, and total compensation paid to the residents. We model this problem as a mixed integer linear programming model and propose Simulated Annealing (SA) as an effective solution approach. Extensive computational experiments confirm that SA is effective to solve MDWCVRPTW-SDO. Moreover, the number of waste banks, compensation paid to residents, and the distribution of residents of each type are crucial for the success of the implementation.

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“…The travel distance of the round trip between the downtown of the city and the landfill is about 34 km with an estimated travel time of 45 minutes. This situation is common in MSW systems since environmental regulations and citizens' concern have gradually forced landfills to be located further and further from the downtown (Ghiani et al, 2021).…”

Section: Introductionmentioning

confidence: 99%

Optimization of waste collection through the sequencing of micro-routes and transfer station convenience analysis: An Argentinian case study

et al. 2023

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Municipal solid waste management is a paramount activity in modern cities due to environmental, social and economic problems that can arise when mishandled. In this work, the sequencing of micro-routes in the Argentine city of Bahía Blanca is addressed, which is modelled as a vehicle routing problem with travel time limit and the vehicle’s capacity. Particularly, we propose two mathematical formulations based on mixed integer programming and we solve a set of instances of the city of Bahía Blanca based on real data. Moreover, with this model, we estimate the total distance and travel time of the waste collection and use this data to analyse the possibility of installing a transfer station. The results demonstrate the competitiveness of the approach to resolve realistic instances of the target problem and suggest the convenience of installing a transfer station in the city considering the reduction of the travelled distance.

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Optimizing a waste collection system with solid waste transfer stations

Cited by 15 publications

References 16 publications

Improving the tactical planning of solid waste collection with prescriptive analytics: a case study

Improving the tactical planning of solid waste collection with prescriptive analytics: a case study

Using Simulated Annealing to Solve the Multi-Depot Waste Collection Vehicle Routing Problem with Time Window and Self-Delivery Option

Optimization of waste collection through the sequencing of micro-routes and transfer station convenience analysis: An Argentinian case study

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