abstract

Metropolitan university campuses (MUCs) are of interest for policymaking given their general highly car-oriented nature, and the subsequent need to promote policies that enhance sustainable accessibility outcomes. Hence, a growing body of research has emerged over the last decade focusing on travel behavior associated with those metropolitan enclaves. However, limited attention has been paid to distance decay effects on modal choice in the context of MUCs, and that is the main focus of the present research. Based on a representative travel survey, this study analyses the effect of distance to the closest railway station on the decision to use public transportation to travel to the main campus of the Autonomous University of Barcelona (UAB). Changes in the distance decay effect per sociodemographic group and trip characteristics are also analyzed. Results suggest that the effect of distance decay is key to understand the modal choice among noncaptive commuters, but that the magnitude and spatial dimension of this effect varies deeply along socioeconomic variables and commuting practices such as the university role. Findings show specific profile-based distance thresholds of modal choice that will contribute to our understanding of both future travel patterns among UAB members and the design of efficient transportation policies.

摘要

大都会大学校园 (MUC) 由于其普遍高度以汽车为导向的性质，以及随后需要促进提高可持续可达性成果的政策，因此对政策制定很感兴趣。因此，在过去十年中出现了越来越多的研究，重点关注与这些大都市飞地相关的旅行行为。然而，在 MUC 的背景下，距离衰减对模态选择的影响有限，这是目前研究的主要焦点。本研究基于具有代表性的旅行调查，分析了与最近火车站的距离对使用公共交通工具前往巴塞罗那自治大学 (UAB) 主校区的决定的影响。还分析了每个社会人口群体和旅行特征的距离衰减效应的变化。结果表明，距离衰减的影响是了解非俘虏通勤者的出行方式选择的关键，但这种影响的大小和空间维度因社会经济变量和通勤实践（如大学角色）而存在很大差异。调查结果显示了模式选择的基于个人资料的特定距离阈值，这将有助于我们了解 UAB 成员之间未来的旅行模式和有效交通政策的设计。