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The Effect of Spatial Overlap on Functional Efficiency in Public Buildings

Abstract

Spatial overlap occurs when different activities, circulation patterns, or functional requirements occupy or compete for the same physical space within a building. In public buildings, where multiple user groups often perform different activities simultaneously, inappropriate spatial overlap can create congestion, conflicts, reduced privacy, and inefficient use of space. Conversely, carefully coordinated shared spaces can support flexibility and efficient resource utilization. Assessing spatial overlap is therefore important for understanding its influence on the functional performance of public buildings. This study examines the effect of spatial overlap on functional efficiency in public buildings by assessing the relationships between spaces with shared or competing functions. It considers areas such as entrances, reception zones, waiting areas, corridors, multipurpose rooms, service spaces, and shared activity areas. The study evaluates the degree to which different activities occur within the same spaces and how these overlaps influence circulation, accessibility, space utilization, and operational performance. The research further investigates the relationship between spatial overlap and movement patterns within public buildings. Overlapping pedestrian routes may create conflicts between incoming and outgoing users, staff and visitors, or public and service movements. The location and configuration of entrances, corridors, stairs, lifts, waiting areas, and service access points are therefore examined. Attention is given to whether spatial overlaps facilitate convenient interaction or instead create unnecessary congestion and interruptions to building functions. In addition to circulation, the study considers how spatial overlap affects privacy, safety, flexibility, and user experience. Some shared spaces can encourage interaction and accommodate multiple activities efficiently, while inappropriate overlaps may compromise acoustic privacy, visual separation, and security. The assessment therefore distinguishes between beneficial functional integration and problematic spatial conflicts. Factors such as occupancy levels, activity duration, user characteristics, and time-based patterns of space use are also considered. Challenges associated with spatial overlap may include limited floor area, inadequate zoning, competing user requirements, poor circulation planning, insufficient separation between public and service activities, and changing patterns of building use. These conditions can reduce operational efficiency and create difficulties in managing movement and activities. Understanding where and why spatial overlap occurs can help identify opportunities for improving spatial organization, reallocating functions, and introducing flexible planning strategies. The study aims to establish how spatial overlap influences functional efficiency in public buildings and to identify spatial planning approaches that can manage overlapping activities effectively. Its findings are expected to assist architects and building professionals in balancing shared-space utilization with appropriate functional separation, circulation efficiency, accessibility, safety, and user comfort. The study contributes to functional public building design by emphasizing the importance of understanding activity relationships and spatial interactions during architectural planning.

Keywords: Spatial overlap, public buildings, functional efficiency, spatial organization, activity relationships, circulation planning, space utilization, functional zoning, pedestrian movement, user interaction, spatial conflicts, flexibility, accessibility, public architecture.