当前位置: X-MOL 学术J. Transp. Geogr. › 论文详情
Our official English website, www.x-mol.net, welcomes your feedback! (Note: you will need to create a separate account there.)
Assessing transport related social exclusion using a capabilities approach to accessibility framework: A dynamic Bayesian network approach
Journal of Transport Geography ( IF 5.899 ) Pub Date : 2020-04-01 , DOI: 10.1016/j.jtrangeo.2020.102673
Thanos Bantis , James Haworth

Abstract Accessibility is considered to be a valuable concept that can be used to generate insights on issues related to social exclusion due to limited access to transport options. Recently, researchers have attempted to link accessibility with popular theories of social justice such as Amartya Sen's Capabilities Approach (CA). Such studies have set the theoretical foundations on the way accessibility can be expressed through the CA, however, attempts to operationalise this approach remain fragmented and predominantly qualitative in nature. In this study, a novel framework of expressing accessibility at the level of an individual is proposed, based on the basic elements of the CA. In particular, dynamic Bayesian networks are used to express the causal relationship between capabilities, functionings, personal and environmental characteristics. This is done by introducing informative Dirichlet prior distributions constructed using data from traditional mobility surveys, modelling the transition probabilities with data related to place based characteristics and defining an observation model from unlabelled mobility data and places of interest (POI). We demonstrate the usefulness of the proposed framework by assessing the equality levels and their link to transport related social exclusion of different population groups in London, using unlabelled, service provider generated mobility data.

中文翻译:

使用可访问性框架的能力方法评估与交通相关的社会排斥:动态贝叶斯网络方法

摘要 可达性被认为是一个有价值的概念,可用于对由于交通选择有限而导致的社会排斥问题产生见解。最近,研究人员试图将可访问性与流行的社会正义理论联系起来,例如 Amartya Sen 的能力方法 (CA)。此类研究为通过 CA 表达可访问性的方式奠定了理论基础,但是,对这种方法的操作尝试仍然是分散的,主要是定性的。在这项研究中,基于 CA 的基本要素,提出了一种在个人层面表达可访问性的新框架。特别是,动态贝叶斯网络用于表达能力、功能、个人和环境特征之间的因果关系。这是通过引入使用来自传统流动性调查的数据构建的信息丰富的狄利克雷先验分布、使用与基于地点的特征相关的数据对转移概率进行建模以及根据未标记的流动性数据和兴趣地点 (POI) 定义观察模型来实现的。我们通过使用未标记的服务提供商生成的移动数据评估平等水平及其与伦敦不同人群的交通相关社会排斥的联系,证明了拟议框架的有用性。使用与基于地点的特征相关的数据对转移概率进行建模,并根据未标记的移动性数据和兴趣地点 (POI) 定义观察模型。我们通过使用未标记的服务提供商生成的移动数据评估平等水平及其与伦敦不同人群的交通相关社会排斥的联系,证明了拟议框架的有用性。使用与基于地点的特征相关的数据对转移概率进行建模,并根据未标记的移动性数据和兴趣地点 (POI) 定义观察模型。我们通过使用未标记的服务提供商生成的移动数据评估平等水平及其与伦敦不同人群的交通相关社会排斥的联系,证明了拟议框架的有用性。
更新日期:2020-04-01
down
wechat
bug