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Background Data to Aid in Corridor Planning Sara Leitner MS Transportation
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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
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Background Data Area Maps – Corridor Boundaries, Land Use, Neighborhood Associations, Facilities Pedestrian Walkable Catchments Accident Type and Location Other
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Data Sources City of Austin GIS Data Sets website Orthophotographic Imagery
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Creating Area Maps Easy to create using basic functions learned in class this semester
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Corridor Map
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Land Use Map
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Neighborhood Association Map
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Facilities Map
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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%
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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
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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.
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Method for Determining Walkable Catchments Find the parcels touching the network
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Method for Determining Walkable Catchments Edit the new Shapefile
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North Loop Branch Library Catchment The area of the parcels touching the network is 46.4 acres making a walkable catchment of 37.1%.
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Transportation Stop The five-minute area is 79.2% (45.0%). The ten-minute area is 48.1% (39.5%).
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Results of Walkable Catchment LocationWalkable Catchment Percentage HEB Grocery Store47.4% (35.7%) North Loop Branch Library 37.1% Upper Crust Bakery77.4% (43.1%)
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Results of Walkable Catchment Transportation Stop Walkable Catchment Percentage 5-minute10-minute 49 th Street79.2% (45.0%)48.1% (39.5%)
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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
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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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