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Background Data to Aid in Corridor Planning

Learn about corridor planning, utilizing GIS data for land use, facilities, and pedestrian accessibility analysis, as demonstrated by the City of Austin's guidebook. Understand the method for determining walkable catchments and address concerns for accurate results.

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Background Data to Aid in Corridor Planning

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  1. Background Data to Aid in Corridor Planning Sara Leitner MS Transportation

  2. What is Corridor Planning? • A framework to enhance the connection between land use and transportation planning • City of Austin has created a corridor planning guidebook to aid in this process • Objective: • To identify issues that need to be addressed on the candidate corridor

  3. Background Data • Area Maps • Corridor Boundaries, Land Use, Neighborhood Associations, Facilities • Pedestrian Walkable Catchments • Accident Type and Location • Other

  4. Data Sources • City of Austin GIS Data Sets website • Orthophotographic Imagery

  5. Creating Area Maps • Easy to create using basic functions learned in class this semester

  6. Corridor Map

  7. Land Use Map

  8. Neighborhood Association Map

  9. Facilities Map

  10. Pedestrian Walkable Catchment Areas • Method used presented by the Congress for the New Urbanism in a Transportation Tech Sheet • “Maps showing the actual area within a five- to ten- minute walking distance from any activity center or transportation stop.” • A good target is 60%

  11. Method for Determining Walkable Catchments • Set-up ArcView Themes • Add Themes to view and change units to feet • Add Network Analyst Extension • Choose Find Service Area Option • This will allow the five- and ten- minute walking distances to be entered into the program • Choose Line Length as the Cost Field

  12. Method for Determining Walkable Catchments • Locate the Site using the address button • Specify 1320 feet (one-quarter mile, five-minute distance) • Solve • Two new themes are created: Network area and the the Network itself.

  13. Method for Determining Walkable Catchments • Find the parcels touching the network

  14. Method for Determining Walkable Catchments • Edit the new Shapefile

  15. North Loop Branch Library Catchment • The area of the parcels touching the network is 46.4 acres making a walkable catchment of 37.1%.

  16. Transportation Stop • The five-minute area is 79.2% (45.0%). • The ten-minute area is 48.1% (39.5%).

  17. Results of Walkable Catchment

  18. Results of Walkable Catchment

  19. Concerns with this Method • Not totally accurate due to the use of the Street Network not Sidewalk Network • Jaywalking, ADA ramps, Crosswalks and Cut-Thrus • Could help discontinuity

  20. Conclusions on GIS use for Background Data in Planning • Provides an easy way to present visual cues in corridor studies • Walkable Catchments are fast and easy to determine • This will help determine areas of the street network that needs to be concentrated on for pedestrian accessibility.

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