GIS Clinic: Great Rivers Greenway
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GIS Clinic: Great Rivers Greenway

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Bike paths and bike racks in St. Louis

Bike paths and bike racks in St. Louis

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  • Approached Great Rivers Greenway in AprilHad used layer of GRG trails in my Public Sector project last semester about Transit-Oriented DevelopmentOffice near corner of Skinker & Delmar, near my apartment
  • For those who might not know:What is Great Rivers Greenway?
  • Another name for the Metropolitan Park and Recreation District
  • Established in November 2000 by Proposition CServes the City of St. Louis, St. Louis County, and St. Charles County
  • Covers an area of more than 1,200 square miles Serves more than 100 cities
  • Supported by a 1/10 of 1 cent sales taxHas an annual budget of about $10 million
  • Purpose is to make the St. Louis region a better place to liveHas a 5-part mission
  • (1) Connect communities and neighborhoodsPrimarily by developing an interconnected system of greenways, parks, and trails
  • (2) Preserve and connect people to natureThe word Greenway is a combination of the words “greenbelt” and “parkway”
  • (3) Improve economic vitalityGreenways are natural corridors that that connect all parts of the region: parks, residential areas, nature reserves, commercial areas, civic amenities, cultural institutions, and historic sites
  • (4)Provide transportation choicesDeveloping a 600-mile network that will include more than 45 greenways
  • (5) Promote good healthEmulating initiatives in Boston, Denver, Minneapolis, and Portland
  • Great Rivers Greenway is a partner in the CityArchRiver |2015 Project, which will connect the Arch to St. Louis and the Mississippi RiverPublic funding for the project was approved by area voters (Proposition P) in April 2013
  • Great Rivers Greenway has a staff of 9 peopleCarey is the staff member most knowledgeable about GIS
  • Work focused on On-Street Biking in the City of St. Louis; part of Bike St. Louis and Gateway Bike PlanMajor goal was to establish ONE spatial database for use byGreat Rivers Greenway and the City of St. Louis
  • 4 Tasks
  • Started with shapefile of existing bike lanes (149 records)Reviewed data from other cities (Albuquerque, Chicago, Corvallis, Memphis, Portland, and San Francisco)Created feature class with requested attribute fields
  • Edit line features, using Street Centerlines files and Esri aerial photos, mostly at 1:1,000 scaleFill in empty attribute fieldsTried to use logic in filling in attributes From street and To street
  • Individual records needed to coincide with changes in attributes:Street NameMunicipalityType of Bike LaneStatus of Bike Lane
  • Lafayette Square is a good example of what should constitute a record:Shapefile had lanes on 4 streets as 1 record; Feature Class split into 4Other major shifting attribute is type of bike lane
  • Also had to create proposed featuresAnd digitize bike trails in Carondolet and Forest parks
  • Sample Client Deliverable, Bike Lane Feature Class, symbolized here by type – later added 3 more types: Buffered Bike Lane, Bicycle Boulevard, and CycletrackEnded up with 195 records
  • Sample Client Deliverable, Bike Lane Feature Class, symbolized here by status
  • Start with existing spreadsheet (70 addresses with 125 bike racks; ALL Arch or Art)Review other cities dataCreate feature class with requested attribute fields
  • Geocode locationsEdit attributes, 2 primary ones: Type and Status
  • In ArcMap 10.1, need to change Address Locator default setting, from “No” to “Yes,” for: Properties\Geocoding options\Match with no zones
  • Importance of good data
  • Sporadic error message about grid sizes
  • Importance of testing data
  • Resolved by exiting ArcMap and then restarting it
  • Sample Client Deliverable, Bike Rack Feature Class, symbolized here by typeEnded up with 113 recordsTrailnet is currently preparing a crowd-sourced database of about 1,400 bike racks in the St. Louis area
  • Sample Client Deliverable, Bike Rack Feature Class, symbolized here by status
  • 11 Coded-Value Domains were created to improve data integrity8 domains used by bike lanes, and 4 used by bike racks
  • After adding and deleting lots of fields, way to permanently reorder remaining fields
  • Metadata included specific procedures for ongoing data maintenance Limiting versions in use, who edits the data, and how often
  • 5-step process
  • St. Louis passed a bicycle-parking ordinance in April 2012Mandates rack provision for new buildings or renovations of $1 million or moreAlso establishes bicycle-rack installation requirements
  • 5 major types of GIS suitability analysis
  • Build it. But where? The use of geographic information systems in identifying locations for new cycling infrastructureInternational Journal of Sustainable Transportation
  • Lead consultant = ALTA Planning + Design, Portland, OR-based firmAlso does work for Great Rivers Greenway
  • Destinations, where end-of-trip facilities, such as bike racks, are needed
  • Create study-area fishnetMontreal study used 300 meter by 300 meter grid cells
  • Use ModelBuilder to document what was done and to simplify any changes
  • 1,968 grid cells66.2 square miles
  • Add Field, and Save Join Count; 11 times
  • With a long series of Spatial Joins, it is important to: Delete Join_Count from the Field Map before each new iteration
  • Add field, and Calculate field; 11 timesSum up all 11 fields into a total value for each grid cell
  • 616 priority grids, ranging in value from 25 to 26079 high-priority grids (red), ranging in value from 100 to 260
  • Of the 79 high-priority grids, 44 are intersected by 1, 2 or 3 bike lanes8 of the 44, intersected by 3 bike lanes, were categorized as First-Tier
  • Of the 8 First-Tier, High-Priority Bike Lanes, 1 already has 2 bike racks7 have no bike racks (Arch or Art)3 of the 7 are not even near any racks (installed or requested)
  • Dover St & BroadwayScore 1102 small parks,1 dedicated bike lane, and 2 shared-traffic lanes
  • Holly Hills Blvd & Christy BlvdScore 1102 small parks, 2 dedicated bike lanes, and 1 shared-use regional trail
  • Lafayette & Missouri – has a generic bike rackScore 1001 small park, 2 dedicated bike lanes, and 1 shared-traffic lane
  • Further analysis:Different grid-cell sizeMore criteriaDifferent weightsMore bike racks in database
  • GIS grid-cell model is a good way to:Make decisions about bike-rack locationsDocument those decisions, and facilitate changes to the model
  • Questions?

Transcript

  • 1. GREAT RIVERS GREENWAY Nancy Cole GIS Clinic (U90 422 51) Washington University in St. Louis August 9, 2013
  • 2. What is Great Rivers Greenway?
  • 3. What is Great Rivers Greenway?  Metropolitan Park and Recreation District
  • 4. What is Great Rivers Greenway?  Metropolitan Park and Recreation District  Created in November 2000 by a vote of the people of the City of St Louis, St Louis County, and St Charles County (Proposition C)
  • 5. What is Great Rivers Greenway?  Metropolitan Park and Recreation District  Created in November 2000 by a vote of the people of the City of St Louis, St Louis County, and St Charles County (Proposition C)  Spans more than 1,200 square miles and 100+ municipalities
  • 6. What is Great Rivers Greenway?  Metropolitan Park and Recreation District  Created in November 2000 by a vote of the people of the City of St Louis, St Louis County, and St Charles County (Proposition C)  Spans more than 1,200 square miles and 100+ municipalities  Funded by a 1/10 of 1 cent sales tax that generates $10 million annually
  • 7. What is Great Rivers Greenway?  Metropolitan Park and Recreation District  Created in November 2000 by a vote of the people of the City of St Louis, St Louis County, and St Charles County (Proposition C)  Spans more than 1,200 square miles and 100+ municipalities  Funded by a 1/10 of 1 cent sales tax that generates $10 million annually  Mission: Make the St Louis region a better place to live, by …
  • 8. Connecting communities and neighborhoods
  • 9. Preserving and connecting people to nature
  • 10. Improving economic vitality
  • 11. Providing transportation choices Retrieved from: www.flickr.com
  • 12. Promoting good health
  • 13. CityArchRiver | 2015 Retrieved from: www.cityarchriver.org
  • 14. Todd Antoine Director of Planning Carey Bundy Project Manager Who did I work with at Great Rivers Greenway? Retrieved from: www.greatrivers greenway.org
  • 15. What GIS help was requested? Retrieved from: www.greatrivers greenway.org
  • 16. Task #1 Edit bike-lane data Task #2 Prepare bike-rack data Task #3 Facilitate data updates Task #4 Develop model for selecting new bike-rack locations
  • 17. Task #1 Edit bike-lane data Shapefile Feature Class
  • 18. Task #1 Edit bike-lane data From street – at north or east end of segment To street – at south or west end of segment
  • 19. Task #1 Edit bike-lane data Individual records must coincide with changes in attributes. • Street Name • Municipality
  • 20. Task #1 Edit bike-lane data Before – Shapefile After – Feature Class
  • 21. Task #1 Edit bike-lane data Create proposed features and attributes Digitize Carondelet and Forest Park bike trails
  • 22. Spreadsheet Feature Class Task #2 Prepare bike-rack data
  • 23. Task #2 Prepare bike-rack data Geocode locations Edit attributes
  • 24. Task #2 Prepare bike-rack data Trouble with Address Locator
  • 25. Task #2 Prepare bike-rack data Trouble with poor addresses & multiple or non-existent racks Location Listed Actual 3100 – 3300 Morgan Ford Rd 11 10 3200 – 4700 S Kingshighway Blvd 9 5 7900 – 8200 N Broadway 3 0
  • 26. Task #2 Prepare bike-rack data Trouble with Create Feature Class
  • 27. Task #2 Prepare bike-rack data Trouble with domain & field attribute • Only 2 of 113 racks were displayed when feature class was symbolized by type • TYPE_RACK field deleted and re-created
  • 28. Trouble with Script Error Task #2 Prepare bike-rack data
  • 29. Task #3 Facilitate data updates Created geodatabase, feature dataset, and two feature classes Created and assigned 11 domains
  • 30. Task #3 Facilitate data updates Used Simple Data Loader in Arc Catalog to permanently reorder fields
  • 31. Task #3 Facilitate data updates Prepared metadata for all 4 files
  • 32. Task #4 Develop model for selecting new bike-rack locations Research policies of other cities Review GIS suitability-analysis methodologies Research GIS analysis of bicycle facilities Collect data layers for analysis Run models, evaluate, rerun, document, and display
  • 33. Task #4 Develop model for selecting new bike-rack locations • Rack-request programs • Rack-installation requirements • Bicycle-parking zoning ordinances Policies of other cities
  • 34. Task #4 Develop model for selecting new bike-rack locations • Boolean logic, using buffers, spatial selection, intersections, and spatial joins • Vector- or raster-based overlay • Weighted or fuzzy overlay, rating locations • Kernel density smoothing • Grid-cell analysis GIS suitability-analysis methodology
  • 35. Task #4 Develop model for selecting new bike-rack locations 2013 Montreal study McGill University School of Urban Planning
  • 36. Task #4 Develop model for selecting new bike-rack locations Seattle Bicycle Master Plan Draft June 2013
  • 37. Task #4 Develop model for selecting new bike-rack locations Parking is an end-of-trip facility Use destinations popular with cyclists as data layers • Transit centers • Light-rail stations • Colleges/universities • Private schools • Public schools • Hospitals • Libraries • Museums • Attractions • Large parks • Small parks
  • 38. Task #4 Develop model for selecting new bike-rack locations Create study-area fishnet Cells 1,000 feet by 1,000 feet Grid 89 rows by 45 columns
  • 39. Task #4 Develop model for selecting new bike-rack locations Study-Area Fishnet Model
  • 40. Task #4 Develop model for selecting new bike-rack locations 1,968 grid cells
  • 41. Task #4 Develop model for selecting new bike-rack locations Spatial Joins to Fishnet Model
  • 42. Task #4 Develop model for selecting new bike-rack locations Must delete Join_Count from Field Map
  • 43. Task #4 Develop model for selecting new bike-rack locations Grid-Value Calculation Model
  • 44. Task #4 Develop model for selecting new bike-rack locations • Experiment with different grid-cell sizes • Add more criteria to selection process, e.g. retail & commercial areas • Try different weights for criteria • Map additional bike racks, not just arch and art racks Further analysis
  • 45. Task #4 Develop model for selecting new bike-rack locations “Clear justifications for new cycling infrastructure and objective evaluation of past projects will result in a greater degree of transparency in transportation planning, and ultimately better planned cycling networks.” Larsen, J., Patterson, Z., & El-Geneidy, A. (2013). Build it. But where? The use of geographic information systems in identifying locations for new cycling infrastructure. International Journal of Sustainable Transportation, 7(4), 299-317.
  • 46. Questions?