Specify whether traffic signals have a button for pedestrians
Specify whether traffic signals have sound signals
Specify whether crosswalks have tactile paving
Specify whether pedestrian crossings have islands
Specify whether pedestrian crossings have traffic signals
Specify railway crossing barriers type
Specify whether kerbs have tactile paving
Determine the heights of kerbs
Specify whether steps have a ramp
Specify whether steps have handrails
Specify which way leads up for steps
Survey tactile paving on steps
Specify whether steps have a ramp