san francisco county transportation authority measuring route-level accessibility: applications to...
TRANSCRIPT
SAN FRANCISCO COUNTY TRANSPORTATION AUTHORITY
Measuring Route-Level Accessibility: Applications to San
Francisco Network
Jennifer Ziebarth, Neema Nasir,Elizabeth Sall, Lisa Zorn
TRB Planning Applications ConferenceMay 9, 2013
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Route-level accessibility
Many paths One path
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Creating a bicycle route choice model
Hood, Sall, Charlton: “A GPS-based bicycle route choice model for San Francisco, California”. Transportation Letters (2011) 3: (63-75).
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Route-level accessibility from Ferry Building
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If we build it … they will run away??
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Routes are correlated with each other
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It all comes down to the pathsize correction
Path utility Pathsize correction
Before After Before After
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Valencia paradox
Before After
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Bierlaire and Frejinger
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Pathsize Penalty algorithm
Path 1 Path 3Path 2
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Sensitivity testing, revisited
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One path versus many
1 path 5 paths 10 paths
SAN FRANCISCO COUNTY TRANSPORTATION AUTHORITY
Thank you!
Special thanks to:Elizabeth Sall, Lisa Zorn, Neema Nassir,
Jeff Hood, John Bowman,Dan Tischler, Alireza Khani