A 2010 doctoral dissertation on the effects of street connectivity on walkability and access to transit has been added to the Resource Center best practices. "Walking to the station: The effects of street connectivity on walkability and access to transit" was written by Ayse N. Ozbil for his Doctor of Philosophy degree in the College of Architecture at Georgia Institute of Technology.
This study examines the impact of street network connectivity on transit patronage. The aim is to better understand how connectivity affects the decision to use public transportation after we control for population density and the effect of walking distance from the transit station. Data on population densities, transit service features, and annual average daily station boardings are drawn from Chicago (CTA), Dallas (DART), and Atlanta (MARTA). Results suggest that metric reach, which measures the street length that is accessible within a walking range, has significant impact on ridership levels jointly with population density and two attributes of transit service features. In particular, the estimates indicate that metric reach is a stronger predictor of transit use than station area population densities.
The proposed research addresses the impacts of urban form on transit ridership, in general, and the relationship between public transportation and walking, in particular. Urban form is defined in terms of three core dimensions: densities, land use patterns, and street networks. Existing literature suggests that population, employment and development densities (Holtzclaw 1994; Quade and Douglas Inc. 1996b; Cervero 1996); number of non-residential destinations and the mix of land uses (Cervero 2002; Kockelman 1997); density of street networks (Moudon et al. 2006; Handy 1996); and attitudinal factors (Kitamura et al. 1997; Krizek 2000) support walking and contribute to transit ridership.
This thesis analyzes an on-board transit survey conducted by the Atlanta Regional Commission in order to determine how far urban density, mixed land-uses, and street network connectivity are related to different walking behaviors, namely transit walk-mode shares and walking distances to/from stations. The data are drawn from all the stations of Atlanta’s rapid transit network (MARTA).
Allowing for quite a bit of noise in the data, some of the findings confirm for the case of Atlanta what a review of existing literature would lead one to expect: mixed land-use and denser street networks are associated with higher proportion of riders traveling to/from the station “walking” (noise in the data does not allow to fully distinguish with certainty walking as the sole mode of access to/from the station from walking combined with the use of bus services).
The thesis also explores questions that have not been previously covered systematically in the literature. First, does urban…
They are places that are layered and altered from the ground up, as opposed to being single-use and organized. James Rojas, an urban transportation planner, describes "Latino New Urbanism" as the sort of place that "derives its character" not from "structures, codes and designs" but from the way Latinos have transformed and adapted America suburban or urban environments to fit the needs of their communities...