Table 3 - uploaded by Amr Mostafa Fathy
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Source publication
Construction site layout planning is a complex problem that has significant impacts on work and cost efficiency. It includes the identification and placement of temporary facilities: location of site offices, cranes, storage areas, fabrication shops, warehouses, entrances and exits gates, temporary roads and water tanks. The objective of this resea...
Contexts in source publication
Context 1
... closeness relationship scale represents the various relationships that the user may select to signify the proximity or degree of closeness between facilities. Table 3 presents the corresponding scale to each closeness relationship along with its corresponding symbol. The closeness relationship for project stages is inserted by the user to signify the relative proximity between temporary facilities through the use of the scale defined in Table 3. ...
Context 2
... 3 presents the corresponding scale to each closeness relationship along with its corresponding symbol. The closeness relationship for project stages is inserted by the user to signify the relative proximity between temporary facilities through the use of the scale defined in Table 3. The relative proximity of facilities is defined for each work package in the project to illustrate the closeness relationship required between the temporary facilities over the project schedule. ...
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Citations
... However, the existing CSLP automation models do not take into account the constraints as thoroughly as construction site layout planners consider them when creating actual construction site layouts [13]. For example, a boundary constraint that temporary facilities should be laid out inside the site boundary, and an overlapping constraint that objects should not overlap are used by many construction site layout optimization models; however, constraints that deal with environmental and safety problems, such as noise and falling objects [14], and constraints considering geometric relationships, like maintaining a safe distance between site objects such as neighboring buildings and site elements, are rarely applied [15]. However, no attempts have been made to develop a constraint model for use in CSLP automation models through a systematic investigation of the constraints of temporary facilities applied in actual cases. ...
... Such insufficient applications of constraints in CSLP may lead not only to an inefficient travel path during construction, but also to an increase in costs incurred from the installation and relocation of temporary facilities, and ultimately have a negative impact on the construction site layout optimization [38]. Therefore, it is necessary to identify and apply various constraints that can be derived from historical data such as past similar projects [14,37]. Additionally, some research [39,40] has noted that in the case of a construction project that has multiple phases, the task of entering repeated data (i.e., constraints) for each phase can be tedious. ...
This study sought to develop a typology model of temporary facility constraints that can be used practically in construction site layout planning (CSLP) automation models. A triangulated methodology (literature review, in-depth interviews, and actual case studies) was used to identify constraints of 11 temporary facilities that are considered mainly in CSLP and to classify them into six constraint types (i.e., dimensional, regional, relocation, non-overlap, inter-facility distance, and visibility constraints) and seven subtypes. In addition, this study proposed computational modeling methods that would allow a computer to judge whether or not the constraints are met by a created construction site layout. This study contributes to CSLP theory by providing a typology model of temporary facilities that can be used in the model-based verification of the created construction site layout and constraint processing condition in CSLP optimization models. This would also help provide efficient, safe, and eco-friendly construction site management, while refraining from experience- and intuition-centered CSLP practices.
