Determine the heights of kerbs at crossings
Specify whether there are crossings at intersections of paths and roads
Specify building and roof levels
Survey whether places have seating
Add kerbs and align with imagery
Add traffic island area, and align with imagery
Specify street/place names to addresses
Specify whether crosswalks have tactile paving
Specify whether traffic signals have a button for pedestrians
Specify whether kerbs have tactile paving
Determine the heights of kerbs