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Modeling the Constraining Influence of Urban Morphology on Non-Motorized Mobility.

紀錄類型:	書目-電子資源 : Monograph/item
正題名/作者:	Modeling the Constraining Influence of Urban Morphology on Non-Motorized Mobility./
作者:	Aras, Rohan Lee.
面頁冊數:	1 online resource (128 pages)
附註:	Source: Dissertations Abstracts International, Volume: 84-09, Section: B.
Contained By:	Dissertations Abstracts International84-09B.
標題:	Built environment. -
電子資源:	http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=30306109click for full text (PQDT)
ISBN:	9798374477610

Modeling the Constraining Influence of Urban Morphology on Non-Motorized Mobility.
Aras, Rohan Lee.

Modeling the Constraining Influence of Urban Morphology on Non-Motorized Mobility. - 1 online resource (128 pages)

Source: Dissertations Abstracts International, Volume: 84-09, Section: B.

Thesis (Ph.D.)--Stanford University, 2022.

Includes bibliographical references

Urban mobility fundamentally structures the everyday lives of the majority of humans, and as a result, has sweeping global impacts. At its core, mobility describes how people move from one place to another as they carry out their daily routines, such as commuting to work or school, running errands, and recreating. The decisions that people can and do make to perform this travel inform the possibilities of those routines. Partially as a consequence, choices regarding mobility have an outsized impact on various issues facing society, including economic development, community formation, public safety, public health, equity, and the environment. Urban mobility is particularly consequential due to the large share of global population and economic production housed in cities. For example, the dominance of the automobile in American cities is largely responsible for around 17% of the country's greenhouse gas emissions and contributes to the leading cause of child mortality [56, 122, 123]. Mobility in cities is well known to have some dependence on urban morphology. However, this relationship is still not fully understood, particularly for non-motorized forms of mobility. This dissertation seeks to further explore the relationship between urban morphology and non-motorized mobility, with an emphasis on studying how barriers in the urban built environment impose constraints.My first focus of study in this dissertation studies how constraints on non-motorized mobility structure cities. Neighborhoods and neighborhood-like areal units have long been used to provision infrastructure and services within cities, but existing definitions are often arbitrary or otherwise inadequate for this purpose. Constraints on nonmotorized mobility have often been used to justify bespoke neighborhood boundaries and have provided theoretical grounding to justify the provisioning of some services. I formalize this intuition by developing a generalized and scalable approach to identify hierarchical neighborhood-like structures. Comparing the results of this approach in three different American cities reveals both similarities and differences in the scales of subdivision and neighborhood emergence.The next section of this dissertation investigates whether wide streets function as barriers that modify bicyclist behavior and dissuade certain bicycle trips. It is well known that perceptions of safety can discourage potential bicyclists from taking utilitarian trips by bicycle. These perceptions of safety, or more accurately, a lack of safety, are largely influenced by the design of street infrastructure. Large intersection crossing distances, a function of the width of streets perpendicular to the direction of travel, have been shown to have a negative impact on safety perceptions. However, it is unclear whether this discomfort affects actual trip behavior. I address this gap through a study of a large dataset describing bikeshare trips in a large American city. My findings indicate that riders do avoid crossing large intersections, albeit in limited circumstances, and that other factors, such as the relative positions of origin and destination pairs, may inhibit avoidance.The final part of this dissertation examines the role of the suburban street network in constraining pedestrian access to nearby points of interest. The reliance on the automobile for mobility in the US is largely driven by the car-dependent nature of the suburbs, where most Americans live. This dependence is the result of several factors that make it impractical to walk or bike to most destinations.

Electronic reproduction.
Ann Arbor, Mich. :
ProQuest,
2023

Mode of access: World Wide Web

ISBN: 9798374477610Subjects--Topical Terms:

3634048
Built environment.
Index Terms--Genre/Form:

542853
Electronic books.

Modeling the Constraining Influence of Urban Morphology on Non-Motorized Mobility.
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