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Helping Put Theory into Practice for Planning Sustainable Communities
A GIS tool for measuring transit accessibility
Liz ThompsonAbdulnaser Arafat, PhDShimberg Center for Housing Studies
Presenters [email protected]
20 April 2012
Ruth Steiner, PhDPaul Zwick, PhD
Dept Urban & Regional Planning
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Assisted Housing and Transit Accessibility
In this study:
• Assisted housing refers to:– privately owned multi-family rental housing that receive
subsidies from federal, state and local governments
• Transit Accessibility refers to:– the ease or convenience of getting to destinations using
the transit system
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Transit Accessibility Tool - Overview
GIS raster-based tool - Small-scale, site-specific capabilities
Combines two measurements1. Accessibility to transit stops
– road network distance to nearest stop (0 to 25 score)
2. Accessibility to employment using transit– average least-cost trips (0 to 25 score)
Total accessibility measurement (0 to 50 score)
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Employment Access Score
Least Cost Trips
Access to employment using transit
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Study Highlights• Transit accessibility is more than being close to a transit stop –
where the stop takes you is just as important
• Important finding for agencies involved in funding and preserving assisted housing
• Decision support tool for locating future developments and improving accessibility of existing ones
Next Steps• Statewide accessibility map – • Duval (Jacksonville), Pinellas (St. Petersburg), Hillsborough
(Tampa) – completed• Miami – next in line