scholarly journals Genetic Algorithm to Optimize Solid Waste Collection

2019 ◽  
Author(s):  
Kabil Bhargava ◽  
Anupam Singhal ◽  
Rajiv Gupta ◽  
Ajay Shrinivas
Keyword(s):  
Genetic Algorithm ◽  
Solid Waste ◽  
Waste Collection ◽  
Solid Waste Collection

scholarly journals Vehicle-Routing Optimization for Municipal Solid Waste Collection Using Genetic Algorithm: The Case of Southern Nablus City

2017 ◽  
Vol 26 (3) ◽  
pp. 43-57 ◽  
Author(s):  
Ramiz Assaf ◽  
Yahya Saleh
Keyword(s):  
Genetic Algorithm ◽  
Solid Waste ◽  
Vehicle Routing ◽  
Service Level ◽  
Current Situation ◽  
Waste Collection ◽  
Solid Waste Collection ◽  
Routing Problem ◽  
Routing Optimization ◽  
Vehicle Routing Optimization

Abstract Municipalities are responsible for solid waste collectiont for environmental, social and economic purposes. Practices of municipalities should be effective and efficient, with the objectives of reducing the total incurred costs in the solid waste collection network concurrently achieving the highest service level. This study aims at finding the best routes of solid waste collection network in Nablus city-Palestine. More specifically, the study seeks the optimal route that minimizes the total travelled distance by the trucks and hence the resulted costs. The current situation is evaluated and the problem is modelled as a Vehicle Routing Problem (VRP). The VRP is then optimized via a genetic algorithm. Specifically, compared to the current situation, the trucks total travelled distance was reduced by 66%, whereas the collection time was reduced from 7 hours per truck-trip to 2.3 hours. The findings of this study is useful for all municipality policy makers that are responsible for solid waste collection.

scholarly journals Combination of conditional cash transfer program and environmental health interventions reduces child mortality: an ecological study of Brazilian municipalities

2021 ◽  
Vol 21 (1) ◽  
Author(s):  
Anelise Andrade de Souza ◽  
Sueli Aparecida Mingoti ◽  
Rômulo Paes-Sousa ◽  
Leo Heller
Keyword(s):  
Environmental Health ◽  
Solid Waste ◽  
Total Population ◽  
Conditional Cash Transfer ◽  
Cash Transfer ◽  
Transfer Program ◽  
Waste Collection ◽  
High Coverage ◽  
Solid Waste Collection ◽  
Access To Water

Abstract Background This study aims to assess the interactive effects of Brazilian public interventions, environmental health programs (access to water, sanitation and solid waste collection) and a Conditional Cash Transfer Program (PBF), on the mortality reduction due to diarrhea and malnutrition among children under 5 years old. Methods The study design is ecological, with longitudinal analysis in a balanced panel. The period covered is 2006 to 2016, including 3467 municipalities from all regions of the country, which resulted in 38,137 observations. The generalized linear models were adjusted considering the Negative Binomial (NB) distribution for the number of deaths due to malnutrition and diarrhea, with fixed effects. NB models with and without zero-inflation were assessed. Subsequent interaction models were applied to assess the combined effects of the two public policies. Results In relation to the decline of mortality rates due to diarrhea in the municipalities, positive effect modification were observed in the presence of: high coverage of the target population by the PBF and access to water, 0.54 (0.28–1.04) / 0.55 (0.29–1.04); high coverage by the total population by the PBF and access to water, 0.97 (0.95–1.00) and high coverage by the total population by the PBF and access to sanitation, 0.98 (0.97–1.00). Decline on diarrhea mortality was also observed in the joint presence of high coverage of solid waste collection and access to water, categories 1 (> 60% ≤85%): 0.98 (0.96–1.00), 0.98 (0.97–1, 00) and 2 (> 85% ≤ 100%): 0.97 (0.95–0.98), 0.97 (0.95–0.99). Negative effect modification were observed for mortality due to malnutrition in the presence of simultaneous high coverage of the total population by the PBF and access to sanitation categories 1 (≥ 20 < 50%): 1.0061 (0.9991–1.0132) and 2 (≥ 50 < 100%): 1.0073 (1.0002–1.0145) and high coverage of the total population by the PBF and solid waste collection, 1.0004 (1.0002–1.0005), resulting in malnutrition mortality rates increase. Conclusion Implementation of environmental health services and the coverage expansion by the PBF may enhance the prevention of early deaths in children under 5 years old due to diarrhea, a poverty related disease.

An efficient route design for solid waste collection using graph theory and the algorithm of the traveling agent in dynamic programming

2021 ◽  
Vol 193 (5) ◽  
Author(s):  
Moisés Filiberto Mora Murillo ◽  
Walter Alfredo Mora Murillo ◽  
Luis Xavier Orbea Hinojosa ◽  
Arlys Michel Lastre Aleaga ◽  
Gabriel Estuardo Cevallos Uve ◽  
...  
Keyword(s):  
Dynamic Programming ◽  
Graph Theory ◽  
Solid Waste ◽  
Waste Collection ◽  
Solid Waste Collection ◽  
Route Design ◽  
Efficient Route
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