GIS Clinic: Great Rivers Greenway
•Download as PPTX, PDF•
1 like•474 views
Bike paths and bike racks in St. Louis
Recommended
Recommended
More Related Content
What's hot
What's hot (6)
Similar to GIS Clinic: Great Rivers Greenway
Similar to GIS Clinic: Great Rivers Greenway (20)
More from Nancy Cole
More from Nancy Cole (7)
Recently uploaded
Recently uploaded (20)
GIS Clinic: Great Rivers Greenway
- 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
- 11. Providing transportation choices Retrieved from: www.flickr.com
- 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
- 24. Spreadsheet Feature Class Task #2 Prepare bike-rack data
- 25. Task #2 Prepare bike-rack data Geocode locations Edit attributes
- 26. Task #2 Prepare bike-rack data Trouble with Address Locator
- 27. 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
- 28. Task #2 Prepare bike-rack data Trouble with Create Feature Class
- 29. 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
- 30. Trouble with Script Error Task #2 Prepare bike-rack data
- 33. Task #3 Facilitate data updates Created geodatabase, feature dataset, and two feature classes Created and assigned 11 domains
- 34. Task #3 Facilitate data updates Used Simple Data Loader in Arc Catalog to permanently reorder fields
- 35. Task #3 Facilitate data updates Prepared metadata for all 4 files
- 36. 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
- 37. Task #4 Develop model for selecting new bike-rack locations • Rack-request programs • Rack-installation requirements • Bicycle-parking zoning ordinances Policies of other cities
- 38. 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
- 39. Task #4 Develop model for selecting new bike-rack locations 2013 Montreal study McGill University School of Urban Planning
- 40. Task #4 Develop model for selecting new bike-rack locations Seattle Bicycle Master Plan Draft June 2013
- 41. 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
- 42. 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
- 43. Task #4 Develop model for selecting new bike-rack locations Study-Area Fishnet Model
- 44. Task #4 Develop model for selecting new bike-rack locations 1,968 grid cells
- 45. Task #4 Develop model for selecting new bike-rack locations Spatial Joins to Fishnet Model
- 46. Task #4 Develop model for selecting new bike-rack locations Must delete Join_Count from Field Map
- 47. Task #4 Develop model for selecting new bike-rack locations Grid-Value Calculation Model
- 54. 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
- 55. 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.
- 56. Questions?
Editor's Notes
- 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?