In this paper, a fuzzy multiobjective mathematical programming model for operational transport planning in a supply chain is presented. The objectives of the proposed model are the minimization of the number of used trucks and the total inventory level, by considering vehicle capacities as a...

This paper presents a critical analysis of some of the techniques which are applied in practice to obtain composite indicators from a previous sub-indicator system. In studying each methodology, we identify the advantages and disadvantages associated with them, paying particular attention to...

This paper analyzes the importance of having a network of stations adapted to vehicles carrying dangerous goods. In the r̄st place, it is studied the current demand which is offered by the existing parking areas, and in the second place, it is explained a maximum coverage location model in...

The generalized truck-and-trailer routing problem (GTTRP) constitutes a uniēd model for vehicle routing problems with trailers and a fixed lorry-trailer assignment. The GTTRP is a generalization of the truck-and-trailer routing problem (TTRP), which itself is an extension of the well-known...

In this paper we investigate how to allocate the available budget for agri-environmental measures to maximise environmental benefits and to minimise potential negative side effects resulting for farmers from the implementation of agri-environmental measures. According to the governmental and EU...

In the present paper an analysis of the neo-classical optimization model with linear constraints is proposed. By introducing the dual problem it is shown that the solution to the maximization problem is also a solution to the minimization problem. The purely theoretical model proposes a...

In this paper is carry out an analysis of affinities in the perception on how to leave the crisis behind. For that we have considered the opinion of experts belonging to the politics, the economy, the company and the banking in order to gather those opinions and to look for likeness and...