RAPID: Understanding Transit Traveler Response to the Atlanta I-85 Bridge Collapse

RAPID：了解过境旅客对亚特兰大 I-85 大桥倒塌的反应

• 批准号: 1745327
• 负责人: Kari Watkins
• 金额: $ 5万
• 依托单位: Georgia Tech Research Corporation
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2017
• 资助国家: 美国
• 起止时间: 2017-08-01 至 2018-07-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=1745327&HistoricalAwards=false
• 关键词: RAPID; Understanding; Transit; Traveler; Response

Following the collapse of a bridge span on a critical section of I-85 in Atlanta on March 30, 2017, drivers significantly changed their travel behavior. One component of this change in travel behavior was a 50-70 percent increase in transit ridership at certain stations on Atlanta's MARTA transit system. Previous studies of severe network disruptions in Minneapolis, California, and Japan have predominantly indicated that major travel behavior change is fleeting. However, the experience in Atlanta may prove significantly different, as MARTA's rail transit system provides a direct parallel route for many commuters. This Grants for Rapid Response Research (RAPID) project will assess the extent to which riders sustain this change in mode choice, and will discern their underlying preferences and attitudes regarding travel. This work will contribute to society's ability to create a more sustainable transportation system by expanding knowledge of transportation choices concerning alternative modes. The research team includes multiple undergraduates and grad students from diverse backgrounds. This project will measure and model the rebound effect (i.e., the extent to which individuals and households revert to their pre-disruption activity-travel pattern after the restoration of the critical infrastructure) and the hysteresis effect (i.e., the extent to which some changes are permanent even after a substantial period of time has elapsed since the restoration of service). The study design includes work to identify perceptions regarding transit service across patrons who were willing to try the service in more extreme conditions, but who do not remain patrons in the longer term, including attitudes about shared spaces and other lifestyle choices to fill an important gap in mode choice modeling.

2017年3月30日，亚特兰大I-85公路关键路段的一座桥跨倒塌后，司机们的出行行为发生了重大变化。这种旅行行为变化的一个组成部分是亚特兰大玛尔塔交通系统某些车站的交通乘客量增加了50- 70%。先前对明尼阿波利斯、加州和日本严重网络中断的研究主要表明，主要的旅行行为变化是短暂的。然而，亚特兰大的经历可能会证明是截然不同的，因为玛尔塔的轨道交通系统为许多通勤者提供了一条直接的平行路线。这个快速反应研究（RAPID）项目的赠款将评估乘客在多大程度上维持这种模式选择的变化，并将辨别他们对旅行的潜在偏好和态度。这项工作将通过扩大有关替代模式的运输选择的知识，促进社会建立更可持续的运输系统的能力。研究团队包括来自不同背景的多名本科生和格拉德生。该项目将测量和模拟反弹效应（即，在关键基础设施恢复之后个人和家庭恢复到其中断前活动-旅行模式的程度）和滞后效应（即，即使在恢复服务后很长一段时间之后，某些变化仍是永久性的程度）。这项研究设计包括确定顾客对公交服务的看法，这些顾客愿意在更极端的条件下尝试这项服务，但从长远来看，他们不会成为顾客，包括对共享空间和其他生活方式选择的态度，以填补模式选择建模中的一个重要空白。