Broadening Understanding of the Interplay Among Public Transit, Shared Mobility, and Personal Automobiles (2018) / Chapter Skim
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5 Introduction A major transportation network company provided the researchers with data about trip origins and destinations in five different regions in the United States for the period of May 2016. While representing just a small sample of overall TNC activity nationwide, the data presents a window into TNC usage in a range of urban forms.
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6 Broadening Understanding of the Interplay Among Public Transit, Shared Mobility, and Personal Automobiles Metropolitan Statistical Area (MSA) Population, millions (% change, 2010-16)
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Market Characteristics 7 Seattle and Los Angeles fall in between, with fairly high levels of population density at the core, extensive metropolitan areas, and comparable levels of household car ownership, driving commutes, and transit ridership at the metro level. In Seattle's compact core, however, commute mode split and car ownership are more like the three dense-core cities.
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8 Broadening Understanding of the Interplay Among Public Transit, Shared Mobility, and Personal Automobiles There is no clear relationship at the regional level between peak-hour TNC use and longer-term changes in a region's public transit usage during the period studied. At a broad level, patterns of TNC use in the six regions appear to cluster similarly to the urban forms and mobility characteristics.
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Market Characteristics 9 that coincided with major maintenance-related track closures across the Washington Metropolitan Area Transit Authority (WMATA) rail system in 2015 and 2016.
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10 Broadening Understanding of the Interplay Among Public Transit, Shared Mobility, and Personal Automobiles service in some cities. As TNCs continue to evolve and the economy reaches other points in the business cycle, this will be a crucial area for continued research.
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Figure 5. Major peak-hour flows in Chicago (hourly volume greater than 25% of the highest volume flow for the region)
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12 Broadening Understanding of the Interplay Among Public Transit, Shared Mobility, and Personal Automobiles highly congested surface streets, while a trip from Ravenswood south to the Loop has multiple rail and express bus options. The areas with the heaviest peak-hour TNC trip volumes include many of the highest-income downtown residential areas in their respective regions.
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