Indonesia is a developing country with a low-level e-waste management system based on a limited number of informal initiatives. E-waste requires proper management procedures, which involve the design of a reverse logistics management network. Consumers play a critical role in such a network, because the network runs when they willingly participate as suppliers of waste. This paper applies the Theory of Planned Behavior framework and extends it using Reverse Logistics drivers, the Value Belief Norm Theory, and facility accessibility to explain consumer intention to participate in e-waste collection programs. A survey was conducted on smartphone users in Indonesia, with a total of 324 valid questionnaires. The results showed that government drivers, facility accessibility, and personal attitudes significantly influence consumer intentions. Environmental concern has a positive influence on consumer intentions through the variables of the Theory of Planned Behavior and perceived behavioral control through government drivers. This study shows the need for integration, because the variables reinforce each other. However, neither economic drivers nor subjective norms significantly influence consumer intentions. This finding distinguishes Indonesia from other countries, especially developed countries, in that e-waste collection programs have not become part of the culture in Indonesia. For this reason, Indonesia needs regulations, as the most influential variable, to regulate the implementation of such a program.

Many existing studies have used hypothetical data to evaluate the performance of various metaheuristics in solving delivery route optimization. As empirical data impose characteristics of a particular problem, it is necessary to evaluate whether the problem characteristics may influence to the performance of metaheuristics. This article therefore attempts to compare the performance of metaheuristics, that is, genetic algorithm, ant colony optimization (ACO), particle swarm optimization, and simulated annealing (SA), to solve an empirical delivery problem in Yogyakarta, Indonesia. Two cases are developed to capture different characteristics of empirical data. The first case introduces delivery problem of one logistics operator and 58 retailers; the second case presents collaborative strategy in delivery problem, involving two logistics operators and 142 retailers. Results indicate that ACO and SA perform better with respect to less distance traveled for both cases and higher truck utility and lower number of routes for the second case.

Purpose: The paper aims at proposing a framework and demonstrating application of the framework to evaluate and select the appropriate location for Urban Distribution Center (UDC) in Yogyakarta Special Region Province, Indonesia.Design/methodology/approach: The proposed framework consists two steps of analysis. First, spatial analysis to generate alternative locations using weighted Geographical Information System (GIS) data; second, multi-criteria decision-making to select of the best location. Multi-criteria decision-making method based on fuzzy logic was applied to deal with uncertainty. Accessibility, security, connectivity of multi-modal transport, costs, environmental impact, proximity to customers, proximity to suppliers, resource availability, expansion possibility, service quality, are taken as the decision criteria.Findings: The proposed framework has been able to explain the unsuitability of Jogja Inland Port. Results further indicate that Jogja Inland Port appears to be the worst alternative, whereas the best location for UDC is located in Berbah (Sleman district) where a joint warehouse managed by a group of private companies has existed.Research limitations/implications: As the study has involved the government, experts, and practitioners, future research could engage local residents as decision makers to refine the results, as various stakeholders may have different preferences.Practical implications: From a practical point of view, the present study provides insights to the government to the application of combined approach in determining UDC location as well as evaluation toward the acceptability of Jogja Inland Port.Social implications: The unsuccessful establishment of Jogja Inland Port implies that associated stakeholders, i.e., government, practitioners, residents, should be taken into consideration when planning Urban Distribution Center (UDC) establishment.Originality/value: The research proposes a framework to evaluate and select the appropriate location for Urban Distribution Center (UDC) through combined approach of spatial analysis and multi-criteria decision-making which involves relevant stakeholders.

Hybrid aerial and ground vehicles are seen as a promising option for deployment in a post-disaster assessment due to the risk of infrastructure damage that may hinder the assessment operation. The efficient operation of the hybrid aerial and ground vehicle, particularly routings, remains a challenge. The present study proposed a collaborative hybrid aerial and ground vehicle to support the operation of post-disaster assessment. The study developed two models, i.e., the Two-Echelon Vehicle Routing Problem combined with Assignment (2EVRPA) and the Two-Echelon Collaborative Vehicle Routing Problem (2ECoVRP) to evaluate optimal routings for both aerial and ground vehicles. The difference lies in the second echelon in which the 2EVRPA uses a single point-to-point assignment, whereas the 2ECoVRP considers the collaborative routings between the ground vehicle and the aerial vehicle. To demonstrate its applicability, the developed models were applied to solve the post-disaster assessment for the Mount Merapi eruption in Yogyakarta, Indonesia. Sets of numerical experiments based on the empirical case were conducted. The findings indicate that the 2ECoVRP performs better than 2EVRPA in terms of the total operation time. The tabu search algorithm was found to be a promising method to solve the models due to its good quality solution and computational efficiency. The deployment of eight drones appears to be optimum for the given network configuration of the studied case. Flight altitude and battery capacity were found to be influential to the operation time, hence requiring further exploration. Other potential avenues for future research are also discussed.

The concept of urban-industrial symbiosis, which integrates urban and industrial activities through the use of unutilized resources, waste, and energy, is necessary to be applied to support sustainability. This concept continues the development of the industrial symbiosis concept, which integrates the use of unutilized resources from nearby industries. This article analyzed relevant research related to the development of urban-industrial symbiosis that has been published previously. This research conducted a bibliometric analysis to see how the trend of urban-industrial symbiosis research developed from previous works. Furthermore, this research used a systematic literature review (SLR) to analyze the form of symbiosis that occurred, its enablers and barriers, methods, and impact. It was found that the enablers that were widely mentioned in the selected articles were the existence of supporting regulations, the availability of supporting technology, and the potential for reusing existing waste. Meanwhile, the barriers that hindered the development of urban-industrial symbiosis, as mentioned in at least four publications, were the availability and exchange of information and limited investment capability. A total of 31 articles (79.5%) discussed the environmental impact of urban-industrial symbiosis in reducing greenhouse gas emissions whereas 22 articles (61.5%) discussed the impact of material or energy savings. On the basis of the results of bibliometric analysis and SLR, this article proposes a framework for the development of urban-industrial symbiosis.