Accessibility is a widely used concept across various disciplines to evaluate the degree to which individuals can reach desired destinations. Conventionally, accessibility is determined by the attractiveness of a destination and the associated travel cost to reach it. However, existing place-based accessibility measures do not differentiate between destinations accessible to individuals from a single demographic group and those accessible to individuals from diverse demographic groups. We propose a measure to assess the potential of distinct destinations to bring different individuals and demographic groups together, defining this property as co-accessibility. We demonstrate how measuring co-accessibility can enhance existing accessibility measures, describe its components, and provide a mathematical formulation for quantifying it. To illustrate the practical application of our measure, we conduct a case study in Amsterdam, the Netherlands, comparing the accessibility and co- accessibility of various destinations. This sample case study highlights the complexities and challenges inherent in measuring co-accessibility. Building on existing literature and our analysis results, we discuss the potential implications of co-accessibility, identify key challenges in its assessment, and recommend directions for future research.

中文翻译：

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桥接还是分离？共同可访问性作为潜在基于地点的相遇的衡量标准


可访问性是各个学科中广泛使用的概念，用于评估个人到达所需目的地的程度。传统上，可达性取决于目的地的吸引力以及到达该目的地的相关旅行成本。但是，现有的基于位置的无障碍措施并未区分来自单个人口统计群体的个人可到达的目的地和来自不同人口统计群体的个人可到达的目的地。我们提出了一项措施来评估不同目的地将不同个人和人口群体聚集在一起的潜力，并将此属性定义为共同可达性。我们演示了测量共同可达性如何增强现有的可访问性措施，描述其组成部分，并提供量化它的数学公式。为了说明我们措施的实际应用，我们在荷兰阿姆斯特丹进行了一项案例研究，比较了各个目的地的可达性和共同可达性。此示例案例研究强调了测量协同可访问性所固有的复杂性和挑战。基于现有文献和我们的分析结果，我们讨论了共同可访问性的潜在影响，确定了其评估中的关键挑战，并为未来的研究方向提出了建议。