Pedestrian and Bicycle facility planning for kochi city region, part 2 data collection
Pedestrian Data Collection and Consistency in Open Street Maps · Pedestrian Data Collection and...
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Pedestrian Data Collection and Consistency in Open Street Maps May 23, 2018
Transcript of Pedestrian Data Collection and Consistency in Open Street Maps · Pedestrian Data Collection and...
Pedestrian Data Collection and Consistency in Open Street Maps
May 23, 2018
The Goal – Data Collection and Consistency
Obtain regionally consistent pedestrian asset data that supports:
• potential model improvements for pedestrian travel
• plan monitoring
• consistent evaluation of pedestrian connectivity needs region-wide
• the preservation and maintenance work program
• local needs
Composite Connectivity Index
Sound Transit and King County Metro studyAnalysis included:
Intersection Density Sidewalk CoverageRoute directness Projected increase in transit ridershipSignalized Arterial Crossings Bike Stress
Transit Access Assessments
The Challenge
• Inconsistent data formats between jurisdictions – data sets are difficult to integrate
• Inconsistent information – different data points are collected and not consistent regionally
• Lack of data in some areas
• Longevity of data collection activities and updates
• Challenge of sharing and accessing data in one place
The Challenge
Sidewalk Data Set Example: Inconsistent data formats and lack of detailed information
Polygons Lines on both sidesCenter line with L/R attributes PDF map
No additional data
Step 1: Sidewalk Network in OSM
Start with entering sidewalk data into Open Street Maps (OSM)
1. PSRC contribution: Begin with access to transit locations
2. Prioritize where to begin:• not to overlap what other agencies are doing• suggest high capacity transit and ferries to start
3. Decide on the method: attributes or drawing in the sidewalk network, manual or imports
4. Define essential tags that are needed for step 1
5. Get started…
Why PSRC is choosing Open Street Maps
• Existing transit networks and tools already use OSM networks
• Open source – opportunity for PSRC and partners to
collectively contribute to one data set
• Data in OSM would benefit from analysis tools developed or being developed (AccessMap)
• Provides interoperability and maintainability
TriMet and OpenStreetMap
● TriMet provides transit in
Portland, Oregon region
● Leaders in open source
tools/data
● Helped launch
OpenTripPlanner (OTP) in
2009
● Adopted OSM
in 2011
Madeline Steele
Street Data Comparison - why TriMet chose OSM
Commercial
● Costly
● Limited control over data
quality and updates
Centerline Files
● Free
● Limited coverage area
● Not designed for routing
purposes
OpenStreetMap
● Free
● Seamless coverage worldwide
● Designed for and supports multi-
modal routing
● Investment in community product for
shared benefits
● More control, higher quality
TriMet 2016
sidewalk tagging
PBOT Growing
Transit
Communities Pilot
Tagged before
2016 (by both
TriMet and broader
OSM community)
Sidewalk Project
Colored streets
have sidewalk tags
© OpenStreetMap Contributors. Esri basemap 11
2017 — Expanding to seven counties
1/1/17: 35.7% complete 4/1/17: 72.2% complete 7/1/17: 85.7% complete
Choosing a Methodology
Pilot study:
• Choose handful of existing or future transit hubs for pilot (places where there is added benefit without overlapping efforts)
• Test various methods (within ½ mile walk shed) and report on time and benefits of each :
• Manual coding of sidewalks as an attribute of the roadway
• Manual drawing in of sidewalks (OpenSidewalks)
• Test import methods
• Report on most appropriate method and how those support work program items
TOC Discussion
What are some locations recommended for sidewalk data collection pilot (that meet the following criteria)?
• existing or future transit hubs/ stations
• places where there is added benefit for transit agency planning
• Places that do not already have existing or planned data collection efforts
