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Relative to Who Has Access, Who Actually Uses the Bicycle Infrastructure? Comparative Analysis of Bicycle Commuting Origin-Destination Patterns in Santa Barbara County.
Abstract:
<p dir="ltr">GIS measures of access often focus on proximity which can be an idealized representation, such as influence of household proximity to cycling infrastructure on bicycle ridership, cycling network planning through census tracts population data. GIS measures that represent realized, or actual access need to include data on observed use to be nuanced to reflect the social and economic aspects of access. Our goal is to demonstrate the need for realized measures of access in GIS by comparing idealized and realized measures of bicycling. To meet our goal, we measure ideal accessibility using OpenStreetMap data categorized by Canadian Bikeway Comfort and Safety metrics to classify bicycle infrastructure by three comfort levels in Santa Barbara County, and realized access through origin and destination data collected by Strava Metro – a physical activity mobile application tracking users’ cycling records. To compare ideal and realized usage, we use GIS to reveal their spatial patterns, apply ordinal ranking to rank and map the difference, and use Local Moran’s I to determine where the discrepancy is. Findings include there are big discrepancies in the City of Lompoc and Santa Maria where median household income is relatively low and percentage of hispanic population is relatively high, while small discrepancies aggregated in the City of Santa Barbara which has middle-level median household income and percentage of hispanic population. Realized measures of access in GIS can complement numerous existing idealized measures with social and economic aspects, and can be applied to other regions and promoted to general transportation networks.</p>
Keywords: GIS, access, bicycling, realized, idealized
Authors:
Yuyan Che, University of California, Santa Barbara; Submitting Author / Primary Presenter
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Relative to Who Has Access, Who Actually Uses the Bicycle Infrastructure? Comparative Analysis of Bicycle Commuting Origin-Destination Patterns in Santa Barbara County.
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In-Person Paper Abstract