Embed Size (px)
DESCRIPTION
Bike paths and bike racks in St. Louis
Citation preview
GREAT RIVERS GREENWAYNancy ColeGIS Clinic (U90 422 51)Washington University in St. LouisAugust 9, 2013
What is Great Rivers Greenway?
What is Great Rivers Greenway?
Metropolitan Park and Recreation District
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)
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
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
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 …
Connecting communities and neighborhoods
Preserving and connecting people to nature
Improving economic vitality
Promoting good health
Todd AntoineDirector of Planning
Carey BundyProject Manager
Who did I work with at Great Rivers Greenway?
Retrieved from: www.greatriversgreenway.org
What GIS help was requested?
Retrieved from: www.greatriversgreenway.org
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
Task #1 Edit bike-lane data
Shapefile Feature Class
Task #1 Edit bike-lane data
From street – at north or east end of segment
To street – at south or west end of segment
Edit existing features and attributes
Task #1 Edit bike-lane data
Edit existing features and attributes
Individual records must coincide with changes in attributes.
• Street Name • Municipality
Task #1 Edit bike-lane data
Before – Shapefile After – Feature Class
Task #1 Edit bike-lane data
Create proposed features and attributes
Digitize Carondelet and Forest Park bike trails
Spreadsheet Feature Class
Task #2 Prepare bike-rack data
Task #2 Prepare bike-rack data
Geocode locations
Edit attributes
Task #2 Prepare bike-rack dataTrouble with Address Locator
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
Task #2 Prepare bike-rack data
Trouble with Create Feature Class
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
Trouble with Script Error
Task #2 Prepare bike-rack data
Task #3 Facilitate data updates
Created geodatabase, feature dataset, and two feature classes
Created and assigned 11 domains
Task #3 Facilitate data updates
Used Simple Data Loader in Arc Catalog to permanently reorder fields
Task #3 Facilitate data updatesPrepared metadata for all 4 files
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
Task #4 Develop model for selecting new bike-rack locations
• Rack-request programs
• Rack-installation requirements
• Bicycle-parking zoning ordinances
Policies of other cities
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
Task #4 Develop model for selecting new bike-rack locations
2013 Montreal study
McGill University
School of Urban Planning
Task #4 Develop model for selecting new bike-rack locations
Seattle Bicycle Master Plan
Draft June 2013
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
Task #4 Develop model for selecting new bike-rack locations
Create study-area fishnet
Cells1,000 feet by 1,000 feet
Grid89 rows by45 columns
Task #4 Develop model for selecting new bike-rack locations
Study-Area Fishnet Model
Task #4 Develop model for selecting new bike-rack locations
1,968 grid cells
Task #4 Develop model for selecting new bike-rack locations
Spatial Joins to Fishnet Model
Task #4 Develop model for selecting new bike-rack locations
Must delete Join_Count from Field Map
Task #4 Develop model for selecting new bike-rack locations
Grid-Value Calculation Model
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
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.
Questions?
