Draft:Foundation/Local Chapters/United States/Pedestrian Working Group/Schema

This is a work-in-progress draft of a full tagging schema for pedestrian infrastructure mapping developed by the Pedestrian Working Group.

A work-in-progress draft of a quick-start guide for pedestrian infrastructure mapping is available here.

Tiers

Bronze

Description: Roadway-based sidewalk tags and crossing points are present to enable basic pedestrian navigation.

Implementation:

• Accurate sidewalk presence tags on roadways
  • sidewalk:left=* | sidewalk:right=* | sidewalk:both=* = yes | no
    • no is particularly important because it helps mappers and data consumers understand where it has been confirmed that sidewalks are not present
• highway=crossing nodes where crossings exist, even if footway=crossing are not mapped separately
• We recommend against adding detailed sidewalk metadata tagging to roadways (such as sidewalk:left:surface=concrete). This information should instead be added as tags on separately-mapped footway=sidewalk ways.

Silver

Description: Basic geometry and essential tags are present to form an independent navigable pedestrian network consisting of sidewalks and crossings.

Implementation:

• Sidewalks (footway=sidewalk) and crossings (footway=crossing) are mapped as separate ways.
  • Sidewalk presence tags on roadways are updated to use separate
  • Any existing properties of the sidewalks which were mapped on the roadway, such as sidewalk:left:surface=concrete, should be moved from the roadway to the sidewalks
• Essential information about crossings is present:
  • crossing:markings=yes/no - Presence or lack of road markings
  • crossing:signals=yes/no - Presence or lack of signalization
  • crossing:island=yes/no - Presence or lack of a protected pedestrian island

Gold

Description: Detailed geometry and tagging is present to enable accessibility-focused applications and accurate visualizations.

Implementation:

• Sidewalk geometry at intersections is well-represented with ways added where necessary between curbs and sidewalk centerlines
• Detailed information about features is present:
  • barrier=kerb + kerb=* - Curbs are accurately placed and essential details are tagged
    • tactile_paving=* - Presence of tactile paving
  • lit=* - Presence of lighting
  • surface=* - Surface material

Diamond

Description: Pedestrian environment micromapping is complete, which enables router customization for various types of mobility-impaired users and for detailed representation of the environment for institutional use

Implementation:

• area:highway=footway - area representations of pedestrian features
  • Requires fallback representation of paths of travel as ways at centerlines
• Highly detailed tags may be present to enable use cases outside of routing for everyday users, such as informing policy-making decisions
  • width=* - feature width
  • incline=* - steepness information
  • tactile_paving:colour=* - color of tactile warning surfaces
  • Sidewalk cross angle
  • Signalization features are mapped
    • Crossing button: height and/or reach-ability
    • Pedestrian signal heads ("stop/walk" lights)