Published

2013-01-01

A descriptive analysis of quantitative indices for multi-objective block layout

Análisis descriptivo de los indicadores cuantitativos para el problema multiobjetivo del block layout

Keywords:

Plant layout index, quantitative index, block layout, multi-objective evaluation. (en)
Indicadores de distribución en planta, indicadores cualitativos, layout de bloques, evaluación multiobjetivo. (es)

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Authors

  • Amalia Medina Palomera Instituto Tecnológico de Mexicali
  • José Miguel Montalvá Subirats Dpto. Ingeniería de la Construcción y Proyectos de Ingeniería Civil, Universitat Politécnica de Valencia
  • Antonio Hospitaler Pérez ICITECH Instituto de Ciencia y Tecnología del Hormigón, Universitat Politècnica de València

Layout generation methods provide alternative solutions whose feasibility and quality must be evaluated. Indices must be used to distinguish the feasible solutions (involving different criteria) obtained for block layout to identify s solution's suitability, according to set objectives. This paper provides an accurate and descriptive analysis of the geometric indices used in designing facility layout (during block layout phase). The indices studied here have advantages and disadvantages which should be considered by an analyst before attempting to resolve the facility layout problem. New equations are proposed for measuring geometric indices. The analysis revealed redundant indices and that a minimum number of indices covering overall quality criteria may be used when selecting alternative solutions.

Los métodos de generación de layouts proporcionan soluciones alternativas que deben ser evaluadas para verificar su factibilidad y calidad. Para poder tomar decisiones sobre su idoneidad, atendiendo a diferentes objetivos, se hace necesario el uso de indicadores que permitan distinguir, las mejores soluciones obtenidas en la fase de diagrama de bloques. En la presente contribución, se realiza una labor de síntesis y análisis descriptivo de los diferentes indicadores aportados por numerosos autores. El análisis deja en evidencia las ventajas y desventajas de cada uno de los indicadores, que deben ser consideradas por el analista antes de la aplicación. Adicionalmente se plantean nuevas formas de cálculo para indicadores de configuración de tipo geométrico. Los resultados del análisis muestran que existen indicadores redundantes y es posible seleccionar un conjunto de indicadores independientes y suficientes, de tal forma que se cumpla con los criterios generales de calidad para la selección de alternativas de solución.

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