Luis Onieva

Universidad de Sevilla | US · Departamento de Organización Industrial Y Gestión De Empresas II

In this study, natural language processing is proposed to automatize the extraction of information from an extensive number of scientific manuscripts on the use of machine learning in the water industry. Concretely, the articles’ search focuses on the literature published between 2013 and 2022 (both years included) that present or talk about the im...

El desplazamiento migratorio de la comunidad magrebí desde diferentes países de Europa al norte de África durante el periodo estival se suele realizar por medio de vehículos privados, con un volumen de tránsitos de más de 730.000 vehículos en un periodo de tres meses. Esta situación requiere el despliegue de un Plan Estatal de Protección Civil deno...

Due to the population growth and the consequent rapid extension of urban areas, water distribution networks have to be redesigned and adapted to new layouts and water demands. As the design of these networks require the use of discrete variables and non-linear equations, it is a complex problem, being metaheuristics the most suitable techniques to...

La gestión de los activos y su renovación generalmente se planifican a nivel anual y operativo. Sin embargo, a nivel estratégico y táctico, las empresas de infraestructuras buscan modelos de gestión que permitan analizar sus activos, su evolución y la detección de aquéllos que deben ser renovados e incorporados antes en las planificaciones a medio...

In Spain, the water supply service is a municipal responsibility and in general is a sector without competitors. For this reason, an efficiency analysis attains greater significance. This study uses Data Envelopment Analysis (DEA) to estimate the efficiency of different urban water utilities. An extensive data search, where several variables such a...

Water supply and sewer networks are critical infrastructures that provide a basic service to society. However, these systems constantly age and degrade over time. In addition, since network infrastructures are so extensive in length, they require a significant investment in maintenance tasks. Hence, within the context of infrastructure asset manage...

Sewer networks are mainly composed of pipelines which are in charge of transporting sewage and rainwater to wastewater treatment plants. A failure in a sewer pipe has many negative consequences, such as accidents, flooding, pollution or extra costs. Machine learning arises as a very powerful tool to predict these incidents when the amount of availa...

Asset management in hydraulic infrastructures aims for the long-term sustainability of water distribution and wastewater networks. Strategic maintenance planning has thus been deeply analyzed in the literature for individual water and sewer pipes. However, water utilities do not plan and perform replacement activities on individual elements, but ra...

Intermodal freight transport consists of using different modes of transport without changing the load unit. This results in a significant reduction in the time that goods spend at intermodal terminals, where transshipment takes place. Drayage refers to the transport of freight on trucks among intermodal terminals, depots, customers and suppliers. I...

In this study, an evolutionary fuzzy system is proposed to predict unexpected pipe failures in water supply networks. The system seeks to underpin the decisions of management companies regarding the maintenance and replacement plans of pipes. On the one hand, fuzzy logic provides high degrees of interpretability over other black box models, which i...

The continuous development of high-rise buildings around the world requires the installation of efficient elevator systems able to vertically transport the different passengers along the buildings in their daily journeys. Double deck elevators can increase the efficiency of these vertical transportation systems. Double deck elevators consist of two...

Pilots are essential for the operation of maritime ports and an efficient piloting workforce management is critical to provide quality service to incoming vessels, to comply with the strict labor regulations associated with piloting and to avoid penalties due to delays in service. However, designing labor schedules that meet workforce demand and fu...

Purpose: This study describes the trends and applications of machine learning systems in the management of water supply networks. Machine learning is a field in constant development, and it has a great potential and capability to attain improvements in real industries. The recent tendency of data storage by companies that manage the water supply ne...

Maritime transport is one of the oldest methods of moving various types of goods, and it continues to have an important role in our modern society. More than 20 million containers are transported across the oceans daily. However, this form of transportation is constantly threatened by illegal operations, such as the smuggling of goods or people and...

We present a weighted sum model to calculate the risk index, which is equivalent to a priority index for the replacement of pipes in a network. This index is based on two factors related to pipe condition (probability of failure and supply pipe leakage flow), and three factors related to the consequences of pipe failure (non-served demand for suppl...

Contact Center sector has experienced significant growth in recent decades. This growth has implicated new technologies, increasing workloads and new forms of employment. All of them can lead to ergonomic and psychosocial risks. The aim of this study is to review literature about ergonomic and psychosocial risk factors, as well as the preventive me...

Para mejorar las condiciones laborales y fomentar entornos de trabajo saludables, se desarrollan una serie de Buenas Prácticas. Estas medidas preventivas han sido elaboradas a través de la triangulación de la revisión bibliográfica, de las evaluaciones de riesgo realizadas en los puestos de trabajo, y de la participación de un grupo de expertos en...

This paper considers the case study of a smart microgrid district at Graciosa Island in the Canary Islands. The smart energy microgrid district consists of several households and a public use building (school) that includes renewable energy sources (photovoltaic), Li-ion batteries for electric energy storage, domestic hot water heaters acting as th...

Companies in charge of water supply networks are making a huge effort to optimally plan the annual replacements of pipes. This would save costs, enable a higher quality of service and a sustainable management of infrastructure. This study presents a methodology to predict pipe failures in water supply networks. Logistic regression and support vecto...

El desarrollo tecnológico y la superpoblación actual de los núcleos urbanos han desembocado en altas temperaturas en el interior de los edificios, haciendo que este sector represente una parte importante del consumo energético mundial. En respuesta a la necesidad creciente de crear ambientes confortables y aumentar la eficiencia energética, el pres...

El desplazamiento migratorio de la comunidad magrebí desde diferentes países de Europa al norte de África durante el periodo estival, se suele realizar por medio de vehículos privados, con un volumen de tránsitos de más de 730.000 vehículos en un periodo de tres meses. Esta situación requiere el despliegue de un Plan Estatal de Protección Civil den...

El objetivo de este estudio es analizar la aplicabilidad del confort adaptativo a edificios escolares en el sur de España. Se busca comprender mejor la percepción del confort térmico, encontrar las posibilidades de ahorro energético y analizar las características de los estudios en los escolares y sus aptitudes conductuales relacionadas. Además, se...

The complexity of port terminal operations and intermodal transshipments has pushed the introduction of information and communication technologies (ICT) to assist the multiple stakeholders involved in the multiple decision-making processes. More recently the development of systems based on the Internet of Things (IoT) represents a further step in t...

El transporte vertical es una disciplina que estudia los movimientos de personas en edificios. Los edificios altos se han convertido en una construcción común hoy en día. En dichos edificios, el transporte vertical es un problema que requiere un enfoque sistemático y ordenado. Así, para casos extremos en determinados edificios singulares, la ordena...

The planning of vessel navigation along a tidal river is a complex task that can affect the efficiency of inland ports and intermodal chains. The availability of water may represent a significant restriction to port accessibility, having an impact on waiting times, cost and even safety. This paper presents a heuristic procedure to schedule vessels...

The estimation of pollutant emissions related to urban freight activities suffers from the same difficulty faced when trying to estimate the characteristics of individual urban freight routes or demand parameters. The great variety of urban freight practices forces to attain this objective only through strong hypotheses and simplifications. We prop...

This paper deals with the optimisation of the operating costs in a distributed electric and heating energy generation network. The network considers different options to supply the electric and heating demand of a large consumer building: the electricity can be directly bought from the grid, can be taken from renewable energy sources or can be prod...

Private-car based mobility typically constitutes the main option in the case of large urban mobility attractors, generating congestion and parking problems, as well as increased levels of emissions, related both to the displacement itself but also to the search for a parking space. We have analyzed the case of a large work-related mobility attracto...

The use of multi-actor multi-criteria methodologies is widely accepted to evaluate city logistics policies and measures. We have applied this procedure to the proposal of implementation of two alternative measures in a fresh food market in the Seville city center, after gathering all the relevant data from a survey passed to the retailers working i...

Highlights • We describe a new development of a tracking/tracing/management information system • The system is designed for containers in an intermodal corridor • The paper links the impacts of the system with the supply chain requirements • Benefits for the different stakeholders involved are described and discussed Purpose Intermodal transport c...

El fenómeno de la globalización ha modificado los códigos de conducta de muchos de los actores que operan en la escena mundial. Entre estos, los responsables de los gobiernos locales han visto cómo han tenido que reforzar sus estrategias de desarrollo económico, tecnológico o social para conseguir posicionar su área de influencia en una buena situa...

El Descubrimiento de América permite hacer un análisis completo de la Gestión de los Stakeholders en un proyecto. La investigación se divide en tres pasos. Primero, la identificación de los principales interesados, sus roles, intereses y expectativas. Segundo, clasificación de su impacto. Y tercero, evaluación de la influencia en el proyecto de ést...

El fenómeno de la globalización ha modificado los códigos de conducta de muchos de los actores que operan en la escena mundial. Entre estos, los responsables de los gobiernos locales han visto cómo han tenido que reforzar sus estrategias de desarrollo económico, tecnológico o social para conseguir posicionar su área de influencia en una buena situa...

The ex-ante evaluation of urban freight solutions is a complex task, due to the interference of different stakeholder groups with different views and objectives. The multi-actor multi-criteria methods have developed as a response to this scenario, but the determination of the weights required by them remains an unclear and controversial task. We pr...

This study examines the associations between worker characteristics and accident causation. It is based on the causes identified in the accidents investigated in the manufacturing sector of Andalusia (Spain) from 2004 to 2011 by the Labour Authority. The method used to assess the association between the categorical variables related to worker chara...

Because of its mathematical and computational components, operations research OR is not simple to teach or to learn, despite its innumerable industry applications. However, advanced OR is included in many graduate degrees related to industrial engineering, where students need these techniques to solve complex optimization problems. Faced with the p...

The use of indicators focused on management performance is relatively new and only really appeared in the past few decades. A relevant number of authors consider that their use is a key factor in project management. These measures should add value to one or more of the stakeholders. Project delivery and project management require different sets of...

Maintenance operations cover a great number of occupations. Most small and medium-sized enterprises lack the appropriate information to conduct risk assessments of maintenance operations. The objective of this research is to provide a method based on the concepts of task and accident mechanisms for an initial risk assessment by taking into consider...

(English) Investment in construction is limiting by some factors when it is desired improve energy efficiency, because the builders pay more attention to investment, which the life cycle cost over the lifetime of the building. This paper presents a developed methodology to improve the energy rating of buildings and life cycle cost, in the majority...

La inversión en la construcción es un factor limitante cuando se desea mejorar la eficiencia energética, debido a que los constructores prestan mayor atención a la inversión que al coste del ciclo de vida durante la vida útil del edificio. Este artículo presenta una metodología desarrollada que permite mejorar la calificación energética de edificio...

Analysis of accident reports has been a useful tool in occupational safety research. Important variables related to main circumstances of accidents are being gathered in Europe according to European Statistics on Accidents at Work framework (ESAW). This paper present a method for the identification of possible public safety programs based on the ap...

In the last years in Spain, public safety promotion programs in enterprises with high injury rates have been developed. Most of evaluations of those programs show a reduction in the injury rates in the enterprises participating. A program oriented to improve safety management in high injury rate enterprises denominated PAEMSA is analyzed. An strong...

Psychosocial risk is a concern for employers across Europe. Psychosocial risk management, however, is younger than other risk management fields such as safety, hygiene, and ergonomics. Psychosocial risk control prevents accidents and absenteeism. This study examines strategies for psychosocial risk management in manufacturing organizations. The stu...

The Discovery of America marks the point between the medieval times and the modern age, and it can be considered as a good case study for the project stakeholder management. Although the Stakeholder Theory appeared in the 1980s in the Management, it took a relevant function in the project management in the last years. The different roles played by...

Abstract In occupational safety, when a neural network is trained, it is possible to predict the outcome given a combination of risk factors. Risk assessment is probably the most important issue in occupational safety. Risk assessment facilitates the design and prioritization of effective prevention measures. Neural network were applied for predict...

The Discovery of America is a good example of Project Stakeholder Management. Although the Stakeholder Theory appeared in the 80’s in the Management, it took a relevant function in the Project Management in the last years. In fact, the most important publications in this area (PMBOK and ISO 21500) have considered in their last versions. The differe...

(English) The sampling of the users comfort, allows observing and predicting the level of comfort on the HVAC system. The development of online sampling systems assists in the recognition of the behaviour patterns that occur in the offices. This paper presents a methodology specially designed and developed in order to make easier knowledge extracti...

Organization Engineering, more commonly referred to as Industrial Engineering in the English-speaking world, is a widespread discipline that covers fields from Economic Analysis to Production Management or Operational Research. Our objective with this paper is to describe the historical evolution of this discipline, star ting from the strive of the...

Accident causation involves multiple factors. Although musculoskeletal disorders have been studied deeply in the literature, very few studies have been published regarding their causes when they are considered accidents. Accident investigation can be used to research the mechanisms that explain associations between accident causation and risk facto...

Workers in the manufacturing sector are not equally employed and the differences in job assignment depending on their characteristics. Injury rates for the most frequent accident types can be calculated to provide an estimation of the relative risk. The main strength of this paper compared to previous studies is the quality of worker data from the...

Accident causation involves multiple factors. There are some worker characteristics considered risk factors. Accident investigation can be used to research the mechanisms that explain associations between worker characteristics and accident causation. This study focuses on the association between contributing causes and the worker characteristics,...

The design and implementation of innovative infrastructures to support business activities have been carried out in our country over the last years. There have been significant investments, which have often been unsuccessful and very expensive, since they have been based on opportunistic criteria far away from objective and professional criteria. H...

Distribution problems are of high relevance within the supply chain system. In real life situations various different commodities may flow in the distribution process. Furthermore, the connection between production and demand centres makes use of complex mesh networks that can include diversification constraints to avoid overcharged paths. In addit...

The main purpose of this paper is to identify the most frequent causes of accidents in the manufacturing sector in Andalusia, Spain, to help safety practitioners in the task of prioritizing preventive actions. Official accident investigation reports are analyzed. A causation pattern is identified with the proportion of causes of each of the differe...

Container terminals (CTs) are designed to provide support for the continuous changes in container ships. The most common schemes used for dock management are based on discrete and continuous locations. In view of the steadily growing trend in increasing container ship size, more flexible berth allocation planning is mandatory. The consideration of...

The city of Seville is currently developing a land-use reorganisation policy aimed at increasing the number of pedestrian spaces. This paper contains the microscopic simulation built to assess one of those pedestrianisation initiatives from the point of view of its effects on traffic flows and, more specifically, freight deliveries. Two different a...

The management of fixed-income securities investment portfolios enjoys a long tradition in the capital markets. This paper analyses robust optimisation models as efficient tools for risk management of fixed-income securities. The study includes the analysis of scenario-based optimisation models applied to the portfolio selection and on the basis of...

The aim of this work is the estimation of the survival function of a power transformer and a switch for a medium voltage substation, which provides the empirical reliability of this transformer and its switch. The statistical analyses of recurrent events are used for this estimate. In this study, have been applied several estimators: in the presenc...

Worker collectives in the manufacturing sector are not equally employed and the differences in job assignment can confound the relative risk. In cross-sectional studies, some of those possible confounders can be controlled using a multivariate regression model as long as we have proper information of the exposed workers. The main strength of this p...

The relation between quality management and logistics performance has been evaluated in many research works, but our concern here lies with the relation between quality management and logistics management itself, that is, with how certified quality management systems guarantee by themselves that companies are appropriately managing their underlying...

According to the Encyclopaedia of International Safety Organization, Part VIII, Chapter 56 (Saari et al, 1998), causes of accidents should be classified as immediate causes (unsafe acts, unsafe conditions) and contributing causes (safety management performance, mental condition of workers and physical conditions of workers). Within the same company...

In the last years most of the Public Administrations related to occupational health and safety have approved Health and Safety Public Policies (HSPP). An increasing amount of resources have been assigned for specific actions but the evaluation is still not well implemented. One key aspect of evaluation is the identification of appropriate indicator...

Nowadays is very common the presence of tall buildings in the business centres of the main cities of the world. Such buildings require the installation of numerous lifts that are coordinated and managed under a unique control system. Population working in the buildings follows a similar traffic pattern generating situations of traffic congestion. T...

The container terminals (CTs) are designed to provide support to the continuous changes in the containerships. The most common schemes used for dock management are based on discrete and continuous locations. The consideration of continuous location in the CT allows arriving every container ship to the port independently of its size and dimensions....

El objetivo de este estudio se centra en optimizar el coste del ciclo de vida de un edificio con el menor consumo de demanda energética, centrado en la demanda de calefacción. El estudio pretende mejorar la calidad ambiental y energética en los edificios. El objetivo es establecer una metodología de optimización de la envolvente o epidermis de un e...

The main contribution of the developed system is that it provides a tool for the architects to select optimal materials from an array of possibilities for different buildings elements and also to estimate the conceptual cost for the buildings element in the early stage of building design. This study focuses on optimizing the life cycle cost of a bu...

To evaluate a grant program for the development and support of occupational safety projects in small and medium companies (SMC) in Andalusia. The analysis includes data and results of the program between 2006 and 2008. We analyzed the program characteristics in terms of budget, proposals submitted and projects financed. The views of participating c...

The objective of our work is to solve the problem of transferring workers from a resort set on two cays (islets sandy) in the Sabana-Camaguey archipelago, north of Cuba, from their home areas to the resort and vice versa. We start with an economic analysis of the possible alternatives to solve the problem. Those that result most favorable economica...

The freight transportation is one of the main sectors in the European Un-ion. In the last decades, it grew up more than theGPB.This growth was not proportional on all the transportation modes. It has associated negative effects: accidents, pollution and congestion. The UE looked to the intermodality like the main alternative. However, the crisis in...