Specify whether there are crossings at intersections of paths and roads
Specify whether roads have sidewalks
Specify whether traffic signals have a button for pedestrians
Specify whether traffic signals have sound signals
Specify which way leads up for steps
Specify whether roads have sidewalks
Specify whether steps have a ramp
Specify whether steps have handrails
Specify whether traffic signals have sound signals
Specify whether steps have a ramp
Specify whether steps have handrails
Determine the heights of kerbs
Determine the heights of kerbs
Specify whether steps have a ramp
Specify whether steps have handrails
Specify whether roads have sidewalks