GIS-based multicriteria evaluation approach for corridor siting

H. Aissi, Salem Chakhar, V. Mousseau

    Research output: Contribution to journalArticlepeer-review


    Siting a linear facility such as a highway or a pipeline often requires a preliminary study in which one or several corridors are identified. Here we construct corridors as a collection of adjacent polygons specifying a ‘path’ from origin s to destination t. Formally, we make use of a graph, called the connectivity graph, in which vertices correspond to polygons and edges to adjacent polygons. Within this formal representation, a corridor corresponds to an s to t path in the connectivity graph. The corridors are evaluated on two criteria: (1) a quantitative criterion measuring the length of the corridor, and (2) a qualitative criterion measuring the quality of the corridor with respect to the suitability of crossing its component polygons. We first introduce a three-phase approach based on a coupling between a geographical information system (GIS) and multicriteria evaluation and devoted to handling biobjective corridor siting problems. Then, the proposed approach is validated through an example of a real-world application.
    Original languageEnglish
    Pages (from-to)287-307
    Number of pages21
    JournalEnvironment and Planning B
    Issue number2
    Publication statusPublished - 2012


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