In this paper, a quantitative model is implemented with the main goal of building decision support tool to assess feasibility applying Vehicle-To-Grid (V2G) service by company operating fleet electric buses. The proposed can calculate energy that vehicle within depot deliver back grid during periods peak demand, based on operational schedule must be guaranteed (number buses in service). After p...

This paper considers a special vehicle routing problem, the two-echelon problem with simultaneous delivery and pickup demands (2E-VRPSDP). The 2EVRPSDP differs from classic transportation problems in two ways. First, freight depot to customers is managed by shipping through intermediate satellites. Second, each customer 2E-VRPSDP may have demands. an extension of (2E-VRP) (VRPSDP). A variable n...

The present work aims to support tactical and operational planning decisions of reverse logistics systems while considering economic, environmental and social objectives. In the literature, when addressing such systems economic aspects have been often used, while environmental concerns have emerged only recently. The social component is the one less studied and rarely the combination of the thr...

We introduce a new variant of the Traveling Salesman Problem inspired from applications within maritime transportation. The problem is to find a minimum cost tour of a set of ports, but includes draft limitation of some ports. This problem is henceforth referred to as the Traveling Salesman Problem with Draft Limits (TSPDL) and is an important subproblem in complex routing problems in maritime ...

The transportation sector is a complex system. Collecting transportation activity and the associated emissions data is extremely expensive and time-consuming. Grey Relational Analysis provides a viable alternative to overcome data insufficiency and gives insights for decision makers into such a complex system. In this paper, we achieved three major goals: (i) we explored the inter-relationships...

The study aims at investigating chemical speciation, bioavailability and risk assessment of some selected metals in soils around refined petroleum depot using the concentrations as variables to ascertain impacts activities within depot. Surface-soils (0–15 cm) were collected from premises Pipelines Product Marketing Company, Ibadan, Nigeria, while control samples 200 m away location. Electrical...

Throughout the history, the transportation of goods and related logistics have played an important role in human development and existence. This pertains to numerous interlinked processes, whose management is often linked to social system, international linkages, development of industry, market and market specifics. In modern times, the management of these processes is increasingly bound to glo...

In the oil supply chain, the refined petroleum products are transported by various transportation modes, such as rail, road, vessel and pipeline. The latter provides one of the safest and cheapest ways to connect production areas to local markets. This paper addresses the operational scheduling of a multi-product tree-like pipeline connecting several refineries to multiple distribution centers ...